Best Newsletter Platforms for SaaS in 2026
A SaaS newsletter carries changelogs, migration notices, onboarding tips and customer education. It goes to people who are paying, trialing or thinking about buying, and it has to reach the inbox every time. This guide compares the newsletter platforms that fit that job, with plan-level prices and the steps for moving a list safely.
By the editorial team
Quick answer
For most SaaS teams that send product updates to a mixed list of customers, trial users and prospects, Kit is the best place to start. Its free plan covers up to 10,000 subscribers and includes unlimited email broadcasts, landing pages, forms, and audience tagging and segmentation, so you can send a changelog to customers on a paid plan without sending it to trial users who have not reached that stage. The price you will pay later is for automation: visual automations and unlimited sequences start on the Creator plan at $33 per month billed annually, which comes to $396 a year.
If your newsletter is a developer changelog written in plain text, Buttondown is the better fit. If it is a blog with paid memberships, Ghost is. If you want the lowest cost for a very small list, the free plans of Sender and Mailerlite are the places to look. The rest of this page explains how to match the tool to your list, your budget and your sending setup.
How this review was built
The prices on this page come from each vendor's public pricing page, as read by the editorial team on 7 October 2026. Our editors read vendor pricing pages and published documentation only. Nothing here describes a campaign we sent or an account we opened, and no claim about inbox placement or open rates is made on the basis of our own sending.
Prices are in US dollars. When a vendor shows a monthly rate and a lower annual-billed rate, both are given and the billing view is named. Where a vendor prices by subscriber or contact count, the list size the price applies to is named as well. Where a vendor's public page does not show a price for a given list size, this page says "pricing on request" and does not estimate a figure. You should confirm that figure on the pricing page before you buy.
Features are described only where the vendor's pricing page or documentation names them, or where a feature is central to a category, such as a markdown editor or a free tier. If you find an error, use the correction process described on the how we evaluate page.
What a SaaS newsletter needs that a hobby newsletter does not
A personal newsletter usually has one audience, one sender and one kind of message. A SaaS newsletter is different. It may go to paying customers who want release notes, trial users who need to see the features they have not tried, prospects reading a comparison guide, and former customers who may come back. Each group reads different things, and sending all of them the same issue is a common way to lose attention and to raise unsubscribe rates.
That makes segmentation the first requirement. The platform has to let you tag subscribers by status, plan or interest, and to send one broadcast to a single tag or to several tags combined. Some platforms include this on their free plan and others keep it behind a paid add-on or tier. Check that before you choose, because moving a list later is slow and usually loses some of the tags on the way.
The second requirement is content. SaaS newsletters often include code samples, configuration snippets, screenshots, short video walkthroughs and links to documentation. Markdown support helps developers write quickly, while a block editor helps a marketing team that mixes images, buttons and text. Neither is better in general. The question is who writes the issue each week and which editor they will actually use.
The third requirement is separation. Newsletter mail and product mail, such as password resets, receipts and usage alerts, should not share a sending reputation or a failure mode. If a marketing list is poorly maintained, its complaint rate should not affect the emails your customers need in order to log in or pay. Many SaaS teams therefore run a transactional sender beside their newsletter platform. The deliverability section below covers this in detail.
The fourth requirement is cost behaviour. Some platforms charge by subscriber count, some by sends, and some by a mix of both. A newsletter that grows from 500 to 10,000 subscribers can move from a free plan to a much higher monthly bill, so check the price at the list sizes you expect in the next year, not only the price you pay today.
Newsletter platforms for SaaS: side-by-side
| Platform | Best for | Starting price (plan and billing) | Key limitation |
|---|---|---|---|
| Kit | Product updates segmented by tag, with automations added later | Free up to 10,000 subscribers; Creator $33/mo billed annually | Visual automations and sequences need the Creator plan |
| Beehiiv | Growth-led newsletters with paid subscriptions | Free up to 2,500 subscribers; Lite $49/mo | The price steps up sharply once the list passes 2,500 subscribers |
| Buttondown | Developer changelogs written in markdown | Free for the first 100 subscribers; add-ons from +$9/mo | The base price beyond 100 subscribers is a slider, with no fixed figure on the pricing page |
| Ghost | A blog and newsletter on one publishing platform | Starter $15/mo, monthly or annual, up to 1,000 members | Priced by member band, so the plan changes as the list grows |
| Substack | Free publishing with paid subscriptions | Free to publish; revenue share on paid subscriptions | The revenue share applies to every paid subscription |
| Mailerlite | Small lists that need a free start and a low paid plan | Free up to 250 subscribers; Comfort $12/mo monthly or $10.80/mo billed annually | Paid rates are shown for the 500-subscriber starting tier only |
| Campaign Monitor | Brand-led product emails and newsletters | Essentials $31/mo monthly or $27.90/mo billed annually, 500-contact band | Newsletter-specific features are fewer than in creator-focused tools |
| Mailchimp | Teams that already run campaigns and e-commerce emails | Free up to 250 contacts; Standard from $20/mo at 500 contacts | The interface is built around campaigns, which is heavier for a plain newsletter |
| AWeber | Small teams that want a long-established email tool | Lite $15/mo for 500 subscribers; 14-day trial | No ongoing free plan is stated on the pricing page |
| Sender | Very small lists that need an ongoing free plan | Free Forever up to 2,500 subscribers and 15,000 emails/mo | Paid plans are shown for 500-subscriber bands only |
| Loops | SaaS teams that want product emails and newsletters in one account | Free plan with up to 4,000 sends in a rolling 30 days; Growing Audience $99/mo | The free plan carries a Loops footer and a send cap |
What it costs at three list sizes
| Platform | 500 subscribers | 5,000 subscribers | 10,000 subscribers |
|---|---|---|---|
| Kit | $0 on the Free plan; Creator $33/mo billed annually for automations | $0 on the Free plan; Creator $33/mo billed annually for automations | $0 on the Free plan, at the 10,000-subscriber limit; Creator $33/mo billed annually |
| Beehiiv | $0 on the Free plan (up to 2,500 subscribers) | Lite $109/mo monthly, or $95/mo billed annually (5,000 tier) | Lite $139/mo monthly, or $119/mo billed annually (10,000 tier) |
| Buttondown | Pricing on request beyond the first 100 subscribers; add-ons from +$9/mo | Pricing on request; add-ons from +$9/mo | Pricing on request; add-ons from +$9/mo |
| Ghost | Starter $15/mo (up to 1,000 members) | Business $199/mo (up to 10,000 members) | Business $199/mo (up to 10,000 members) |
| Substack | Free to publish; revenue share on paid subscriptions | Free to publish; revenue share on paid subscriptions | Free to publish; revenue share on paid subscriptions |
| Mailerlite | Comfort $12/mo ($10.80/mo billed annually) or Power $25/mo ($22.50/mo billed annually) | Pricing on request | Pricing on request |
| Campaign Monitor | Essentials $31/mo monthly, or $27.90/mo billed annually | Pricing on request beyond the 500-contact band | Pricing on request beyond the 500-contact band |
| Mailchimp | Standard from $20/mo at 500 contacts (up to 6,000 emails/mo) | $100/mo for the 2,501–5,000 contact band (up to 60,000 emails/mo) | $135/mo for the 5,001–10,000 contact band (up to 120,000 emails/mo) |
| AWeber | Lite $15/mo (500 subscribers, 5,000 sends/mo) | Pricing on request beyond 500 subscribers | Pricing on request beyond 500 subscribers |
| Sender | $0 on Free Forever (up to 2,500 subscribers, 15,000 emails/mo) | Pricing on request above 2,500 subscribers | Pricing on request above 2,500 subscribers |
| Loops | $0 within 4,000 sends in a rolling 30 days | Growing Audience $99/mo (unlimited sends to subscribers) | Growing Audience $99/mo (unlimited sends to subscribers) |
Reading the cost table
Two numbers matter most: the price at your current list size and the price at the size you expect in twelve months. The gap between them is the real cost of the choice. Take Beehiiv's Lite plan at 5,000 subscribers. Billed monthly it is $109 a month, or $1,308 a year. Billed annually at $95 a month, it is $1,140 a year, a difference of $168 a year. Those figures only matter if you can commit to the annual term.
Kit's Creator plan is shown at $33 per month billed annually, so the yearly cost is $396. A monthly subscriber should budget a little more, and the pricing page should be checked for the current monthly rate. Ghost's Business plan at $199 a month is $2,388 a year once the member count moves beyond the Starter and Publisher bands. Mailchimp's 5,001 to 10,000 contact band at $135 a month is $1,620 a year.
Where a cell says "pricing on request", the vendor's public pricing page did not show a fixed figure for that list size when the editorial team read it. That does not mean the vendor is expensive. It means you need the exact figure from the vendor before you commit, and asking for it is a reasonable first question in any sales conversation.
Platform-by-platform notes for SaaS teams
Each entry covers what the platform does well for a SaaS newsletter, where it falls short, the price that applies, and a link to the vendor's pricing page. The order follows the comparison table and is not a ranking.
Kit
Tag-based audiences for product updates, with a free plan up to 10,000 subscribers
What it does well for SaaS: Kit's Free plan includes unlimited email broadcasts, unlimited landing pages and forms, and tagging and segmentation for up to 10,000 subscribers. For a SaaS team, that means subscribers can be tagged by product status, such as trial, paid or churned, or by the topics they chose at sign-up, and one changelog can go only to the group that needs it. Selling digital products and subscriptions is also on the free plan, which helps if you publish guides or templates alongside the software.
Where it falls short: Visual Automations and sequences start on the Creator plan, so a team that wants a welcome series or an onboarding track has to pay from the outset. The Pro plan, at $66 per month billed annually, adds subscriber signals, unlimited users, deliverability reporting and a newsletter referral system, which is a large step for a small team. Kit is a creator product, so connections to your own product database run through integrations rather than a native data model. If product usage drives each issue, plan that integration before you commit.
Price: Free up to 10,000 subscribers; Creator $33 per month billed annually; Pro $66 per month billed annually. Paid plans have a 14-day free trial with no credit card required. See the Kit pricing page for current terms.
Beehiiv
A growth-oriented newsletter platform with a free plan up to 2,500 subscribers
What it does well for SaaS: The Free plan supports up to 2,500 subscribers with unlimited email sends and one publication, which is a sensible home for a SaaS newsletter in its first year. The Lite plan at $49 per month covers up to 100,000 subscribers and includes paid subscriptions, automations and audience polls. Polls are useful for product teams that want readers to say which features they want next. Beehiiv offers free trials on Lite and Pro, so the automations can be tested on your own list before you pay.
Where it falls short: The jump from free to paid is large. Once a list passes 2,500 subscribers, the price moves to a paid tier, and the subscriber-tier prices climb steeply. At 5,000 subscribers, Lite is $109 a month billed monthly or $95 a month billed annually. At 10,000 subscribers it is $139 monthly or $119 annually. A SaaS team whose list is heading that way should model the cost now. Beehiiv is also built around publishing and audience growth, so a team that only sends product updates may use less than half of what it pays for.
Price: Free up to 2,500 subscribers; Lite from $49 per month (up to 100,000 subscribers); Pro from $95 per month (up to 250,000 subscribers). Subscriber-tier prices are in the cost table above. See the Beehiiv pricing page for current figures.
Buttondown
A markdown-first newsletter tool that suits developer changelogs
What it does well for SaaS: The free plan covers the first 100 subscribers and includes the editor, a custom sending domain and hosted newsletter archives. For a developer-facing product the editor is the main reason to choose it. Changelogs often contain code blocks, version numbers and links to issue trackers, and a markdown-first editor keeps those readable without fighting a visual builder. Buttondown also offers RSS-to-email, which can send an issue whenever a documentation or blog feed updates.
Where it falls short: Beyond the first 100 subscribers, the base price comes from a subscriber slider, and the pricing page does not give a fixed figure for every list size. Add-ons stack. Tagging and segmentation is +$9 per month, automations is +$29 per month, and Teams is +$79 per month for whitelabeling. A team that wants segmentation, automations and archives on a custom domain pays for more than one add-on. Buttondown is not a lifecycle marketing suite, so product-event journeys have to be built through its interface and integrations.
Price: Free for the first 100 subscribers; add-ons at +$9 per month (tagging and segmentation, which also includes paid subscriptions, analytics and RSS-to-email), +$29 per month (automations) and +$79 per month (Teams). The base subscriber price beyond 100 is on the Buttondown pricing page.
Ghost
A publishing platform where the blog, the newsletter and paid memberships share one system
What it does well for SaaS: Ghost suits a SaaS company whose content library matters as much as its email list. A product blog, a set of long guides and a newsletter can sit on one site, with each post published on the web and sent by email. The Starter plan at $15 per month covers up to 1,000 members, one staff user, a website and an email newsletter. The Publisher plan at $29 per month adds three staff users, custom themes, paid subscriptions and analytics. Business at $199 per month covers up to 10,000 members, 15 staff users and priority support. Ghost is also open-source software, so a team that self-hosts pays for its own infrastructure instead of the managed plans shown here.
Where it falls short: Ghost prices by member band, so a growing list moves from Starter to Publisher to Business as it passes each limit. A SaaS team that only needs a product newsletter, with no blog or memberships, pays for publishing features it will not use. Segmentation by customer plan is not the centre of the product, so if your list is organised mainly by customer status, check that the segments you need can be built before you commit.
Price: Starter $15 per month (up to 1,000 members, monthly or annual billing at the same rate); Publisher $29 per month (up to 1,000 members); Business $199 per month (up to 10,000 members). See the Ghost pricing page for the current plan structure.
Substack
Free publishing with optional paid subscriptions and a reader discovery layer
What it does well for SaaS: Publishing on Substack is free, and paid subscriptions are optional. For a SaaS company that wants a public newsletter about its industry, or a paid analysis product next to its software, this is a simple route with no monthly platform fee to plan around. The editor is built for writing rather than layout, which suits founders who write long essays, interviews or research notes. Substack also has a reader-facing discovery layer, so a newsletter can be found by people who are not yet on your list.
Where it falls short: Paid subscriptions carry a revenue share, so the cost grows with revenue. The audience model is built around free and paid subscribers, not around the plan-level segments a SaaS team uses for customers, trials and churned accounts. That makes it weaker for product-update emails that must reach only the customers on a given plan. Substack is designed for content sent to readers, so the messages your product sends to accounts, such as receipts and access emails, need their own sender.
Price: Free to publish. Paid subscriptions carry a revenue share, which is set out on the Substack pricing page.
Mailerlite
A low-cost email platform with a free plan for small lists
What it does well for SaaS: The Free plan covers up to 250 subscribers and 2,500 emails per month, which suits a product that is building a list of beta users or pre-launch sign-ups. The Comfort plan starts at $12 per month, or $10.80 per month billed annually, at the 500-subscriber starting tier, with a monthly email allowance of ten times the subscriber ceiling. The Power plan at $25 per month, or $22.50 billed annually, at the same starting tier includes unlimited monthly emails. For a small SaaS that sends frequent updates, unlimited sends can be easier to budget than per-send pricing.
Where it falls short: The paid rates are shown for the 500-subscriber starting tier. Larger lists move to bands that must be read from the pricing page, so do not assume the 500-tier figure applies to your size. The editor is capable but does not include the publishing features of Ghost or Beehiiv, so a newsletter that is mostly long-form and archived on the web may need a publishing tool instead.
Price: Free up to 250 subscribers and 2,500 emails per month; Comfort $12 per month ($10.80 billed annually) and Power $25 per month ($22.50 billed annually), both at the 500-subscriber starting tier. See the Mailerlite pricing page for larger bands.
Campaign Monitor
Email design tools for brand-led product emails and newsletters
What it does well for SaaS: Campaign Monitor fits a newsletter that is an extension of the brand: a product launch digest, a quarterly review, or a customer story series that should look like the rest of the company's material. Plans are structured around contact count. The Essentials plan at $31 per month billed monthly, or $27.90 billed annually, includes unlimited email sends in the 500-contact band. The Lite plan at $13 per month ($11.70 billed annually) and the Premier plan at $171 per month ($153.90 billed annually, with premier support including phone support) are the other options. A 30-day free trial covers up to 500 contacts and 500 emails, which is enough to build and send a sample issue before you pay.
Where it falls short: Newsletter-specific features are fewer than in creator-focused tools, and there is no paid-subscription model. The platform is built for email marketing rather than for publishing an archive. Pricing is shown for the 500-contact band, so a larger list needs the current figures from the pricing page. A team that wants a plain-text, fast-to-write newsletter may find the design-first workflow slower than it needs.
Price: Lite $13 per month ($11.70 billed annually); Essentials $31 per month ($27.90 billed annually); Premier $171 per month ($153.90 billed annually). All in the 500-contact band. Details are on the Campaign Monitor pricing page.
Mailchimp
A full marketing suite that also sends newsletters
What it does well for SaaS: Mailchimp suits a SaaS team that already runs paid campaigns, e-commerce promotions or marketing automation and wants the newsletter in the same account. The free plan includes one audience, up to 250 contacts and up to 500 sends per month, with a daily maximum of 250. The Standard plan starts at $20 per month at the 500-contact selector, with up to 6,000 emails per month at that level. At larger bands the pricing page shows $100 per month for 2,501 to 5,000 contacts (up to 60,000 emails per month) and $135 per month for 5,001 to 10,000 contacts (up to 120,000 emails per month). For a team that needs one tool for several kinds of email, that breadth is the reason to pay.
Where it falls short: The interface is built around campaigns and e-commerce, so a plain newsletter takes more steps than it would in a newsletter-first tool. Prices move in contact bands, and the monthly price jumps at each band. A team that wants a simple publication may find the menus more than it needs.
Price: Free (up to 250 contacts and 500 sends per month); Standard from $20 per month at 500 contacts; $100 per month for 2,501 to 5,000 contacts; $135 per month for 5,001 to 10,000 contacts. There is a 14-day Standard trial. See the Mailchimp pricing page for current bands.
AWeber
A long-established email platform with simple subscriber-based plans
What it does well for SaaS: AWeber's plans are easy to read. The Lite plan at $15 per month covers 500 subscribers and 5,000 email sends per month. The Plus plan at $30 per month covers 500 subscribers and 6,000 sends per month. A 14-day free trial lets a small team test the editor and automation features before paying. For a SaaS team with a modest list and a steady sending pattern, the structure is simple to budget.
Where it falls short: The pricing page does not state an ongoing free plan, so after the trial a paid plan is needed. The listed plans are for 500 subscribers, and a larger list needs the current figures from the pricing page. AWeber is a general email marketing tool, so it is less specialised for newsletter publishing than Ghost or Beehiiv, and it does not centre on plan-level segments for SaaS customers.
Price: Lite $15 per month (500 subscribers, 5,000 sends per month); Plus $30 per month (500 subscribers, 6,000 sends per month); 14-day free trial. See the AWeber pricing page for larger lists.
Sender
A low-cost option with an ongoing free plan for small lists
What it does well for SaaS: The Free Forever plan covers up to 2,500 subscribers and 15,000 emails per month. For a pre-revenue SaaS, or a side project with a small waiting list, that is one of the few ongoing free plans with a list size that matters. The Standard plan at $6.30 per month covers 6,000 emails per month and 500 subscribers. The Professional plan at $10.50 per month covers 12,000 emails per month and 500 subscribers, which makes both paid plans among the lowest-priced options in this review.
Where it falls short: The paid plans are shown for 500 subscribers, and no paid band is shown for 5,000 or 10,000 subscribers. Check the current pricing page for those sizes. Sender suits a team that wants a budget email tool. If you need a publishing archive, deep tagging or product-data integrations, the platforms covered above are the better fit.
Price: Free Forever (up to 2,500 subscribers and 15,000 emails per month); Standard $6.30 per month (6,000 emails per month, 500 subscribers); Professional $10.50 per month (12,000 emails per month, 500 subscribers). See the Sender pricing page for details.
Loops
Email for SaaS products, covering newsletters and product sends in one account
What it does well for SaaS: Loops is the platform in this review closest to a SaaS product's own email stack. The free plan allows unlimited contacts, up to 4,000 sends in any rolling 30-day period to the 1,000 newest contacts, and 10 emails per second. The Growing Audience plan at $99 per month allows unlimited sends to subscribers and transactional sends to users who are outside your audience. That covers product messages to people who have not opted into the newsletter, which matters for a product team that wants one place for both kinds of mail.
Where it falls short: The free plan carries a Loops footer and a send cap, so a team that grows past the limit has to upgrade to the $99 plan. Loops is not a publishing platform, so archives, paid memberships and a web-first newsletter are not its focus. The paid plan is a single price, so a small team pays the full $99 even if its list is modest.
Price: Free (up to 4,000 sends in any rolling 30 days to the 1,000 newest contacts); Growing Audience $99 per month. See the Loops pricing page for current terms.
Deliverability: keep newsletter mail and product mail apart
For a SaaS company the costliest email problem is rarely a weak newsletter. It is a product email that never arrives. A password reset, an invoice or a usage alert that lands in spam can cost a customer, and it can happen because a marketing list has a high complaint rate or a stale set of addresses. The safer setup keeps two streams apart: a newsletter platform for issues that go to subscribers, and a transactional sender for account-level messages.
Transactional senders are priced differently from newsletter tools. Postmark's free plan covers 100 emails per month with no overages. Its Basic plan starts at $15 per month for 10,000 emails per month, with the Pro plan at $16.50 and the Platform plan at $18 at the same starting volume. Mailgun's free plan covers 100 emails per day, and its Basic plan is $15 per month for 10,000 emails per month, with Foundation at $35 per month for 50,000 emails. Both are API-first, which suits a product that sends mail from code. Check the Postmark pricing page and the Mailgun pricing page for current volume bands.
Whatever platform you pick, set up the sending domain before the first send. Publish SPF and DKIM records for the sending service, add a DMARC policy for the domain, and check that test messages pass authentication. Use a dedicated subdomain for newsletter mail where you can. A marketing reputation problem then stays on that subdomain and does not spill onto the domain that handles billing and login mail.
List quality is the other half. Before you import anything, remove addresses that hard-bounced, were marked as spam, or have been silent for a long time. Then run the remaining addresses through an email verification service. ZeroBounce, NeverBounce and Kickbox are the best-known names in list verification. This page does not list their prices, because the editorial team did not have a fixed public price for them to read. Check their pricing pages directly before you budget for verification.
Verification is cheap next to a spam-folder incident on an important product announcement, and it is worth running again before each large import. Keep the suppression list that the old platform produces, because those addresses should never be mailed again, whatever the new platform says about them.
How to choose the right newsletter platform
Start with the audience, not the feature list. Write down the three groups who will receive the newsletter, the frequency you expect, and the list size you expect in twelve months. Then work through four questions in order.
First, can the tool segment by the status that matters to you? Customers on a plan, trial users, prospects and churned accounts are the usual groups. If the free plan does not include tagging, the first real cost will be the tier that unlocks it. Kit includes tagging and segmentation on its Free plan. Buttondown offers tagging and segmentation as a +$9 per month add-on.
Second, who writes the issue, and in what format? A developer who writes in plain text will be happiest in Buttondown. A founder who publishes long essays beside a product blog will be happiest in Ghost. A marketing team that designs each issue will be happiest in Campaign Monitor or Mailchimp. Choose the editor your writers will use every week, because an awkward editor is rarely used well.
Third, what does the price look like at the size you expect? Read the cost table and the pricing page for your real list size, not the smallest tier. A tool that is free at 500 subscribers can cost $1,308 a year at 5,000 subscribers on a monthly plan, as Beehiiv does at that size, and a tool that costs $15 a month today may be the cheapest option in a year.
Fourth, where does product email go? If product messages must reach users who have not subscribed, check whether the newsletter platform can send them, or whether you need a separate transactional sender. Loops covers both on its paid plan. Most other tools in this review are built for subscribers only, so the transactional side is a separate decision.
Decision table: if you need this, choose that
| If you need | Choose | Because |
|---|---|---|
| Product updates segmented by customer status, free to start | Kit | Tagging, segmentation and unlimited broadcasts are on the Free plan up to 10,000 subscribers |
| A developer changelog written in markdown with code blocks | Buttondown | The editor is markdown-first, and RSS-to-email is part of the tagging and segmentation add-on group |
| A blog, a newsletter and paid memberships on one site | Ghost | Publisher includes paid subscriptions and custom themes; Business covers up to 10,000 members |
| Referral-led growth for a public newsletter | Kit Pro or Beehiiv | Kit Pro includes a newsletter referral system; Beehiiv's growth tools are central to its product |
| A free newsletter for up to 2,500 subscribers | Beehiiv Free | The Free plan allows unlimited email sends and one publication up to 2,500 subscribers |
| A paid analysis newsletter with no monthly platform fee | Substack | Publishing is free, and the cost is a revenue share on paid subscriptions |
| An ongoing free plan under 2,500 subscribers | Sender Free Forever or Mailerlite Free | Sender's free plan covers 2,500 subscribers; Mailerlite's covers 250 subscribers and 2,500 emails per month |
| Brand-led product emails with a design-first workflow | Campaign Monitor | The Essentials plan includes unlimited sends in the 500-contact band, and a 30-day trial is available |
| Newsletter and campaign tools in one account | Mailchimp | The free plan covers 250 contacts; paid bands cover larger lists with campaign and e-commerce features |
| Product emails and newsletters in one SaaS-oriented account | Loops | The Growing Audience plan covers transactional sends to users outside your audience |
| Product transactional mail kept separate from the newsletter | Postmark or Mailgun | Both are API-first and have free plans, keeping product mail away from the newsletter's reputation |
Migration checklist: moving a SaaS newsletter
| Step | What to do | Check before moving on |
|---|---|---|
| 1. Export | Export the list with email, name, status, tags, and the date and source of each sign-up | The row count matches the old platform's total, and tags are present |
| 2. Clean | Remove hard bounces, spam complaints and addresses silent for a long period | The suppression list is exported and kept for the new platform |
| 3. Verify | Run the remaining addresses through an email verification service | Invalid and risky addresses are removed or held back |
| 4. Authenticate | Publish SPF and DKIM for the new sender, and a DMARC policy for the domain | Test messages pass authentication before any list is imported |
| 5. Consent | Keep the sign-up source for each subscriber, and import only addresses with a valid basis to mail | Every imported contact has a source field |
| 6. Import | Map fields carefully, including tags and status, then import in batches | A sample of 50 contacts shows the correct tags and names |
| 7. Warm up | Send the first issue to the most engaged segment, then widen the audience over several sends | Bounce and complaint rates stay low on each batch |
| 8. Re-point | Change sign-up forms, in-app prompts and links to the new platform | New sign-ups appear in the new platform in the right segment |
| 9. Overlap | Keep the old platform live for a short overlap period, then close it | No subscriber receives the same issue from both platforms |
Migrating without losing the list
Most newsletter migrations go wrong at the import step, not the export step. The old platform produces a file quickly, but the new platform may read a column differently, or a segment may not carry over. Plan the move as a sequence and do not skip the checks in the table above.
Start with the list itself. A list that has grown over several years contains addresses that have bounced, people who unsubscribed through a route the old platform did not log, and duplicates created by different sign-up forms. Cleaning the list before import reduces the risk of a bad first send and gives the new platform a clean starting point for its sender reputation.
Next, separate the sending domain. Set up authentication for the new platform, and if possible send from a subdomain you control. Do not reuse the domain that carries billing or login email, because a problem in the newsletter channel would then reach those messages as well.
Then warm up gradually. Send the first issue to the subscribers who opened the last few issues, and watch bounce and complaint rates before widening the audience. A single send to a large list from a new sender is the usual way to damage inbox placement. Warming up over several issues takes longer but protects the list and the product mail that shares the domain.
Finally, tell subscribers what changed. If the sender name, the address or the design changes, a short note in the last issue on the old platform helps readers recognise the new mail. Keep the old platform live for a short overlap period, and make sure no subscriber receives the same issue from both.
Workflows that suit a SaaS newsletter
Three workflows cover most SaaS newsletter needs. The first is the release digest: a fortnightly or monthly issue that lists shipped features, with a short section for each segment. Customers see the features that apply to their plan, and trial users see the features they have not tried. Tagging by status is what makes this workable without several separate newsletters.
The second is the education series: a sequence of short issues about one job the product does well, sent over several weeks. These need a sequence or automation feature, which is why automations are often the reason a team moves to a paid tier. Keep each issue to one job, link to the relevant documentation, and let the reader decide whether to continue.
The third is the migration or incident notice. These messages must reach the right customers quickly, and they are where separating transactional and newsletter mail matters most. If an issue affects billing, an API version or stored data, send it through the channel that reaches every affected account, not only the newsletter list.
Whatever workflow you choose, review the segment list every quarter. Trial users become customers, customers churn, and a segment that was accurate six months ago may now send the wrong message to the wrong people.
Which platform for which SaaS newsletter
Product updates to a mixed list
Kit. Tagging and segmentation are on the Free plan up to 10,000 subscribers. Budget $33 per month billed annually ($396 a year) once you need visual automations.
Developer changelogs
Buttondown. The markdown-first editor suits code-heavy issues. Budget the base subscriber price from the pricing page once the list passes 100, plus any add-ons you need.
Blog, newsletter and paid memberships together
Ghost. Publisher at $29 per month includes paid subscriptions and custom themes for up to 1,000 members, and Business at $199 per month covers up to 10,000 members.
Product mail and newsletters from one account
Loops, on the Growing Audience plan at $99 per month, covers unlimited sends to subscribers and transactional sends to users outside your audience.
A free start with a small list
Beehiiv's Free plan up to 2,500 subscribers, or Sender's Free Forever plan up to 2,500 subscribers and 15,000 emails per month.
Final notes on choosing
No single newsletter platform is right for every SaaS company. A developer changelog, a founder's weekly essay, a brand-led product digest and a paid analysis newsletter each have different needs, and the best choice follows the audience. Use the cost table to check the price at your real list size, the decision table to match the tool to the need, and the migration checklist before you move a single subscriber.
If your team is still deciding whether a newsletter is the right channel, start on a free plan, track who signs up and who opens each issue, and only then commit to a paid tier. The cost of a free plan is the time it takes to outgrow it, so plan the move before the list reaches the limit.
Frequently asked questions
Practical questions about newsletter platforms for SaaS teams, answered with the prices and limits the vendors publish.
1. Which newsletter platform is cheapest for a SaaS with under 2,500 subscribers?
Several are free at that size. Beehiiv's Free plan covers up to 2,500 subscribers with unlimited sends and one publication. Sender's Free Forever plan covers up to 2,500 subscribers and 15,000 emails per month. Kit's Free plan covers up to 10,000 subscribers, but visual automations need the Creator plan at $33 per month billed annually. Choose by the features you need on day one, because the free plans differ in segmentation and automation.
2. Do I need a separate sender for product emails?
It is safer to keep them apart. Password resets, receipts and usage alerts should not depend on the reputation of your newsletter list. Many teams use an API-first sender such as Postmark or Mailgun for product messages and a newsletter platform for issues. Loops is the exception in this review, since its Growing Audience plan covers both subscriber sends and transactional sends to users outside your audience.
3. How do I send to subscribers by plan without a separate newsletter for each plan?
Use tags or segments that reflect customer status, such as trial, paid and churned, and send each issue to the combination of tags that applies. Kit includes tagging and segmentation on its Free plan. Buttondown offers tagging and segmentation as a +$9 per month add-on. Keep the tags updated when a customer's status changes, or the segments will drift out of date.
4. Is Substack a good choice for a SaaS company?
Substack suits a public newsletter or a paid analysis product, because publishing is free and paid subscriptions carry a revenue share set out on its pricing page. It is less suited to product-update emails that must reach only customers on a particular plan, because its audience model is built around free and paid subscribers rather than plan-level segments.
5. What should I check before importing a list?
Export the list with tags and sign-up sources, remove hard bounces and spam complaints, and run the remaining addresses through an email verification service. Confirm that your sending domain passes SPF, DKIM and DMARC checks. Import in batches and send the first issue to your most engaged subscribers. Keep a note of how each subscriber joined so you can answer questions about consent later.
6. Why might the price on a pricing page differ from the figures here?
Vendors change prices and bands, and the figures on this page were read from public pricing pages on 7 October 2026. Where a vendor shows a price only for a particular subscriber or contact band, this page shows that band and says so, and where no fixed figure is shown it says "pricing on request". Confirm the exact figure for your list size on the vendor's pricing page before you buy, and use the correction process on the how we evaluate page if a figure has changed.
7. Should a developer newsletter use markdown or a visual editor?
A developer newsletter with code blocks, version numbers and repository links is usually easier to write in markdown, and Buttondown is built around a markdown-first editor. Teams with a designer or a marketing writer may prefer a visual editor such as Campaign Monitor or Mailchimp. Choose the format your writers will use every week.
8. How long should I run the old and new platforms side by side?
Keep the old platform live only as long as it takes to confirm that sign-up forms, segments and the first warm-up sends work on the new one. The aim is to avoid a period in which a subscriber gets the same issue from both tools. Once the new platform has sent a few clean issues to the full list, close the old one and keep an exported copy of the suppression list.