ConvertKit vs Mailchimp for SaaS Newsletters

ConvertKit (rebranded Kit in 2024) is the better pick for a SaaS newsletter built around content, a creator angle, or a solo founder's voice. Mailchimp is the better pick if you need a broader marketing suite with ecommerce integrations, SMS, or multi-step automation at a lower entry price. Neither one, out of the box, understands what your SaaS product actually does.

That last point is the one most comparisons skip, and it matters more for a SaaS newsletter than template count or send limits. This guide compares ConvertKit and Mailchimp on the things that decide the pick: pricing, automation depth, deliverability, and design, then covers the SaaS-specific gap both share, so you are not just choosing the nicer editor.

Key takeaways

• ConvertKit's free plan covers up to 10,000 subscribers with unlimited sends; Mailchimp's free plan was cut in January 2026 to 250 contacts and 500 sends a month. For a newsletter-first SaaS growing a list before it has revenue, that gap is significant.
• Mailchimp is cheaper to start on a paid plan (Essentials at $13/mo) than ConvertKit's Creator plan (from $39/mo for 1,000 subscribers, after a 2025 price increase). Mailchimp only unlocks multi-step automation on its Standard plan at $20/mo.
• ConvertKit bills only active, engaged subscribers; Mailchimp counts every contact in your audience, including unsubscribed ones, until you manually archive them. That changes the real cost at scale, not just the sticker price.
• ConvertKit's automation is tag-and-sequence based and easy to learn. Mailchimp's Customer Journey Builder is more powerful for branching, multi-channel automation, but it lives behind the Standard plan.
• Neither tool has a native concept of a SaaS product event. There is no built-in "trial started," "feature activated," or "plan upgraded" trigger in either platform; you route product data in as a tag or custom field, usually with developer help.
• If your SaaS newsletter is really a content and community play, ConvertKit's simplicity wins. If you need broader multi-channel marketing on a budget, Mailchimp wins. If your priority is lifecycle email that reacts to product usage, both are working against their design.

The short answer for a SaaS newsletter

If your SaaS has a strong content or creator angle, founders writing essays, running a paid newsletter, or building an audience alongside the product, ConvertKit's minimalist editor, tag-based segmentation, and built-in monetization (paid subscriptions, digital products, tipping) fit that motion well. It was built for "brands of one," and a solo or small-team SaaS founder writing regularly is close to that profile.

If your newsletter is one piece of a wider marketing operation, needing a broader automation suite, ecommerce integrations, or a cheaper entry point while your list is small, Mailchimp is the more familiar, affordable on-ramp, with more powerful automation once you reach the Standard plan.

Where both fall short is the same place: your SaaS product generates events, signups, trial starts, feature usage, upgrades, that neither platform treats as a native trigger. You can push that data in through tags, custom fields, or Kit's Stripe integration for purchase events, but you are translating product behavior into a content platform's vocabulary either way.

ConvertKit vs Mailchimp: the comparison table

Pricing figures are current as of mid-2026 per each vendor's published pricing pages; both adjust tiers periodically, so confirm on their live calculators before budgeting.

Pricing: the sticker price is not the real number

ConvertKit's headline price looks steep next to Mailchimp's, especially after Kit's September 2025 increase pushed its Creator plan from roughly $15/mo to $39/mo at the entry tier, its first price change in over a decade. Mailchimp's Essentials plan starts at $13/mo for 500 contacts, undercutting Kit's Creator plan at $39/mo for 1,000 subscribers on paper.

But the billing model changes the comparison. ConvertKit only counts active, engaged subscribers toward your plan limit. Mailchimp counts every contact in your audience, including people who unsubscribed, until you manually archive or delete them. If your SaaS newsletter has any churn in engagement, and most do, ConvertKit's effective cost at a given list size can land lower than the sticker price implies, while Mailchimp's bill keeps including names that will never open another email.

The free tiers tell a similar story in reverse. ConvertKit's free Newsletter plan covers up to 10,000 subscribers with unlimited sends and one automated sequence, enough for most early-stage SaaS newsletters to run for a long time before paying anything. Mailchimp's free plan was cut in January 2026 to 250 contacts and 500 sends a month, with no scheduling and no multi-step automation, so a SaaS team growing a list from zero hits Mailchimp's paywall much sooner.

Where Mailchimp wins on price is once you need automation. ConvertKit includes basic automation on lower tiers, but Mailchimp's multi-step, branching Customer Journey Builder only unlocks on the Standard plan at $20/mo and up, still cheaper than ConvertKit's Creator plan if automation depth matters more than billing fairness.

Automation and design: where each one actually wins

Automation favors Mailchimp once you are past the entry tier. ConvertKit's visual, tag-based builder triggers sequences off tags, form submissions, purchases, or custom fields, with a single master list segmented by tags instead of duplicated across separate lists. That is simple and covers most welcome sequences, content nurture, and paid-subscription upsells, but it is not built for branching, multi-channel journeys. Mailchimp's Standard-plan Customer Journey Builder is the more capable engine: branching logic with up to 200 journey points, predictive and behavioral segmentation, send-time optimization, and retargeting ad triggers, though that power sits behind a specific paid tier.

Design goes clearly to Mailchimp, which ships 100-plus templates and a full drag-and-drop editor. ConvertKit offers a handful of mostly text-first layouts by design: Kit's own research found plain-text emails often outperform heavily designed ones for creator audiences, so it never built a visual template library the way Mailchimp did.

Monetization goes clearly to ConvertKit. If your SaaS newsletter is itself a revenue line, paid subscriptions, a digital product, or reader tips, Kit's Commerce features run that inside the same tool, with a transaction fee starting around 3.5% plus $0.30. Mailchimp has no native equivalent; you would bolt on Stripe or a platform like Memberful separately.

The SaaS gap neither tool closes

This is the part most ConvertKit-vs-Mailchimp roundups skip, because they are written for newsletter and ecommerce audiences, not SaaS product teams.

Neither platform has a native concept of a SaaS product event. There is no built-in trigger for trial_started, feature_activated, usage_limit_reached, or plan_upgraded. ConvertKit's automation runs on tags, form submissions, and, via its Stripe integration, purchase events: content and commerce signals, not product usage. Mailchimp's automation runs on list activity, tags, and, for merchants, ecommerce store events like abandoned carts, the same gap from a different angle.

In practice, most SaaS teams using either tool end up pushing product data in as a tag change or a custom field update, usually through an API call a developer maintains, rather than triggering a sequence off a live event. That is workable for a simple welcome series, but it becomes a bottleneck the moment your growth team wants to change a trial-conversion sequence and has to file an engineering ticket to do it, the exact problem that pushes SaaS teams toward tools built around behavioral triggers from the start.

A concrete example of what a native SaaS trigger looks like, described in plain words: a trial_started event fires when a user completes signup, enrolling them into a sequence. Day 0 sends a welcome email, day 3 sends a feature-highlight email only if they have not activated a core feature, and day 12 sends a trial-ending nudge unless they have already upgraded. Neither tool treats that event-and-condition logic as a first-class, no-code path; you approximate it with tag plumbing instead.

Deliverability: the part both vendors undersell

ConvertKit reports an 87 percent deliverability rate as of 2026, backed by a dedicated deliverability team focused on list hygiene and sender-domain alignment, according to its own published figures. Mailchimp covers the deliverability basics, authentication setup and bounce handling, but offers less advanced tooling like feedback-loop data analysis.

Both platforms send through shared infrastructure. Your sender reputation sits in a pool with other customers on the same service, and you do not directly control it. That mostly matters if you also send transactional or lifecycle mail, password resets, billing notices, trial nudges, through the same domain: worth understanding before you commit your whole sending stack to it.

One more thing rarely mentioned in either vendor's marketing: reported open rates are increasingly unreliable because privacy features and security scanners, Apple Mail Privacy Protection among them, open emails automatically before a human ever does. Neither tool separates a real human open from a scanner open, so a headline "open rate" is only a partial picture.

Where a SaaS-built option fits into this decision

Neither ConvertKit nor Mailchimp was designed around SaaS lifecycle events, and that is fine for what each is actually built to do. If the honest answer after reading this is that you need email that reacts to what a user does inside your product, without an engineering ticket for every sequence change, that is a different job than either tool was built for.

Meisa is one option built around that job specifically: sequences enroll on real triggers, signup, tag, custom event, form submit, segment entry, as a first-class path rather than tag plumbing an engineer maintains, and it can run on your own Amazon SES so your sender reputation belongs to your domain rather than a shared pool. It is not the fit for everyone here: ConvertKit's paid subscriptions and digital products still beat what Meisa offers for a creator-monetization play, and Mailchimp's ecommerce integrations and SMS remain a real gap too. Weigh your actual triggers against what each tool does natively before you pick.

FAQ

Is ConvertKit (Kit) good for SaaS companies?

Depends what the newsletter is for. If the newsletter itself matters as a product, paid subscriptions, a personal voice, a community, ConvertKit's simplicity and monetization tools fit well. If you need behavioral triggers based on product usage, company-level segmentation, or billing-integrated lifecycle sequences, ConvertKit lacks a native concept of product events, and most reviewers point SaaS teams toward purpose-built alternatives instead.

What is cheaper, ConvertKit or Mailchimp?

Mailchimp is cheaper to start on a paid plan (Essentials from $13/mo versus ConvertKit's Creator plan from $39/mo for 1,000 subscribers). But ConvertKit's free plan covers up to 10,000 subscribers, well past where Mailchimp's paid tiers kick in, and ConvertKit only bills active subscribers while Mailchimp counts every contact until archived. Compare total cost at your actual list size, not just the entry price.

Does ConvertKit have automation like Mailchimp?

Yes, but the depth differs. ConvertKit's visual builder covers tags, sequences, and form-based triggers, enough for most newsletter and content-driven flows. Mailchimp's automation gets more powerful on the Standard plan, with branching logic and predictive segmentation, but that tier costs at least $20/mo on top of the base plan.

Can I use ConvertKit or Mailchimp to trigger emails from my SaaS product?

Only indirectly. ConvertKit can react to Stripe purchase events natively, and both platforms can act on custom tags or fields pushed in through an API. Neither has a built-in trigger for a live SaaS event like a trial starting or a feature being used; that data has to be translated into a tag first, usually by a developer.

Which is better for a SaaS company's newsletter, ConvertKit or Mailchimp?

If the newsletter is a content and audience-building tool with a creator feel, ConvertKit tends to fit better and its free plan goes further. If the newsletter is one piece of a broader marketing operation needing ecommerce integrations, SMS, or deeper branching automation on a lower starting budget, Mailchimp fits better. If the real goal is lifecycle email reacting to product usage rather than newsletter engagement, neither tool was built for that job natively.

Write down what your SaaS newsletter actually needs to do, grow a content audience, monetize a subscription, or react to what users do inside your product, before picking a platform on price alone. For a wider look at SaaS-built alternatives, see our guide to the best email marketing software for SaaS, our breakdown of Mailchimp alternatives for SaaS founders, and how Mailchimp compares to Klaviyo. If behavioral automation is the priority, Encharge and other Customer.io alternatives are worth the same side-by-side treatment.