Mailchimp vs ConvertKit (Kit) vs ActiveCampaign 2026: Pricing and Fit

Mailchimp vs Kit vs ActiveCampaign: the quick verdict

This comparison is for founders and marketing leads at small businesses choosing an email platform, or wondering whether the one they have still makes sense as the list grows. The three tools now serve clearly different businesses, and the price gap between them widens a lot past 10,000 contacts.

Mailchimp is the general-purpose option: easy to start, strong templates and ecommerce journeys, but it bills for unsubscribed contacts and its free plan is now small. Kit, which most people still search for as ConvertKit, is built for creators, coaches and newsletter businesses, and it is now the cheapest of the three at mid-sized lists. ActiveCampaign has the deepest automation and segmentation and fits B2B and service businesses with real funnels, but it is the most expensive once lists grow.

Side-by-side comparison

Pricing

All three price by list size. The table uses each vendor's own calculator in US dollars. Kit and ActiveCampaign figures are monthly equivalents on annual billing; Mailchimp figures are its standard monthly list prices.

Three things stand out:

1. The cost order flipped at scale. At 25,000 contacts, Kit Creator costs about half of Mailchimp Standard and less than half of ActiveCampaign Plus. ActiveCampaign is no longer the cheap alternative it once was for growing lists.
2. Mailchimp's discount is temporary. Lists above 10,000 contacts get 15% off for the first 12 months, then revert to list price.
3. Mailchimp's free plan shrank to 250 contacts and 500 sends a month. It is a trial in practice, not a long-term home.

A worked example at 25,000 contacts over one year, at list prices: Kit Creator is $1,990 billed annually, Mailchimp Standard is about $3,720 ($310 a month), and ActiveCampaign Plus is about $4,668 ($389 a month billed annually). The roughly $1,700 gap between Kit and Mailchimp is real money for a small business, but it is not automatically a reason to move. Migration costs two to four weeks of someone's time, rebuilt automations and a deliverability warm-up. Switch when the tool no longer fits how you sell, not only to save a few hundred dollars a quarter.

Feature analysis

Deliverability

Deliverability depends more on your list hygiene, authentication (SPF, DKIM, DMARC) and sending habits than on the brand of tool. All three are established senders. Kit Pro adds deliverability reporting and subscriber engagement scoring; ActiveCampaign offers predictive sending on Pro and above. Whatever you pick, prune inactive subscribers. It helps inbox placement and, on contact-based pricing, the bill.

Automation workflows

ActiveCampaign remains the strongest here: conditional branches, goals, predictive content and attribution on its higher plans. Note that Starter caps automations at five actions each, so most businesses that choose ActiveCampaign for automation need Plus. Kit's Creator plan includes unlimited visual automations and sequences, which covers welcome series, launches and course funnels well. Mailchimp's Standard plan allows up to 200 flows; Essentials is limited to four flow steps, which is too thin for most funnels.

Segmentation

Kit and ActiveCampaign are tag-first, which makes it easy to segment by behavior, such as people who clicked a product page but did not buy. Mailchimp supports tags too, but its audiences are separate lists, so keep one main audience and segment inside it. Clean segmentation feeds directly into better retention and higher lifetime value; see our explainer on the LTV to CAC ratio.

CRM and sales features

ActiveCampaign is the only one of the three that can realistically run a small sales pipeline, but deal pipelines and lead scoring now sit in the Enhanced CRM add-on rather than inside a plan. For a team with dedicated salespeople, compare it with a full CRM; see our HubSpot vs Pipedrive vs Close comparison.

Ecommerce

Mailchimp is widely used by small online stores and offers prebuilt ecommerce automations such as abandoned-cart and post-purchase flows. ActiveCampaign includes standard integrations with Shopify, Square and WooCommerce, and premium integrations (BigCommerce, Magento, Shopify Plus) on Pro and above. Kit is aimed at digital products, paid newsletters and creator commerce rather than physical inventory.

Pricing model pitfalls

Mailchimp's help center states that subscribed, unsubscribed and non-subscribed contacts all count toward your contact total; archived, cleaned and deleted contacts do not. Kit counts only unique, active subscribers. On Mailchimp, archive unsubscribes and long-inactive contacts on a schedule, or you pay for people you cannot email.

Who should use which

Choose Mailchimp if you run a small ecommerce store, retailer, restaurant or local service business; you want templates and a low learning curve; and your list is a few thousand contacts that you keep clean.

Choose Kit if you are a creator, coach, course seller, podcaster or newsletter operator; you sell digital products or paid subscriptions; or your list is growing past 10,000 and you want the lowest cost per subscriber of the three.

Choose ActiveCampaign if you are a B2B, SaaS, agency or service business with several lead sources and multi-step nurture; you need conditional automation and attribution; and the higher price is justified by deal values large enough to pay for it.

Our take as fractional CFOs

Email is usually one of the cheapest channels a business runs, which is exactly why its cost drifts unnoticed. The pattern we see: a business starts on Mailchimp at 2,000 contacts, the list grows to 25,000, nobody archives unsubscribes, and a $45 tool quietly becomes a $300-plus line. The fix is a calendar reminder, not a new platform.

What we look at with clients:

• Cost per engaged subscriber, not per contact. Divide the monthly bill by subscribers who opened or clicked in the last 90 days. That number tells you what the channel really costs.
• Revenue attributed per send. For ecommerce, tie email revenue to orders in your store, not to the email tool's own attribution, and track it in the same dashboard as paid channels. Our ecommerce KPI dashboard guide shows the layout.
• Retention impact. Email's real value is repeat purchase and lower churn, which lifts lifetime value and lets you afford a higher CAC. Model it with our LTV:CAC calculator.
• Tier jumps. All three price in contact bands. Know where the next band starts and clean the list before you cross it.

If your email bill is above about $200 a month, run the comparison above with your own list size. If you sell physical products, the bigger lever is usually margin per order, which our fractional CFO for ecommerce work focuses on.

Next step

If you want a CFO to check whether your marketing tools and channels actually pay back, book a free CFO diagnostic call.