Is Kit or Mailchimp cheaper at 15,000 subscribers?

It depends on the Mailchimp feature tier you choose, since Mailchimp prices by both contacts and plan level while Kit prices mainly by subscriber count. Model both at your exact list size before deciding, and check how each counts inactive contacts.

Which has better deliverability for a 15k list?

Both can deliver well at this size if you authenticate your domain and keep your list clean. Deliverability at 15,000 subscribers depends more on your sending habits and list hygiene than on the platform brand.

Should an e-commerce creator pick Mailchimp?

Often yes. Mailchimp's e-commerce integrations, product retargeting, and broader marketing tools are a genuine strength for store owners who want more than email.

When does beehiiv make more sense than Kit or Mailchimp?

When your business is the newsletter itself. beehiiv is built to create, grow, and monetize newsletters with website building, analytics, an ad network, and paid subscriptions in one platform.

Does Kit support selling courses and memberships?

Kit is designed around creators selling their own digital products and includes commerce and automation tools suited to courses, memberships, and sequences.

How do I avoid overpaying as my list grows past 15k?

Model your cost at 30k and 50k before committing, clean inactive subscribers regularly, and choose the platform whose core strength matches how you make money rather than paying for unused features.

Kit vs Mailchimp at 15,000 Subscribers: Honest Breakdown

For a creator with about 15,000 subscribers, Kit (ConvertKit) is usually the better fit if your business is built on content, automated sequences, and selling your own products, because its tagging and automation are designed around how creators actually work. Mailchimp makes more sense if you run an e-commerce store or need broad marketing tools beyond email, since its product surface is wider. At 15k subscribers you are paying real money on both, so the right call depends on whether you value creator-native simplicity or marketing breadth. If your whole operation is a newsletter, a newsletter-first platform like beehiiv is worth comparing alongside them.

What changes at 15,000 subscribers

Three things shift once your list crosses roughly 15,000 contacts. First, cost stops being trivial. Most platforms price by subscriber count, so you move into higher paid tiers and the monthly bill becomes a line item you have to justify. Second, deliverability gets less forgiving. Larger lists attract more spam complaints and inactive addresses, so list hygiene, authentication, and sender reputation start to matter more than they did at 1,000 subscribers. Third, segmentation becomes essential rather than optional. Sending one broadcast to 15,000 people who signed up for different reasons hurts engagement and deliverability. You need to group by interest, behavior, or purchase history. The platform that makes those three jobs easy is the one that earns its price at this tier.

Kit (ConvertKit): creator-focused strengths and pricing at this tier

Kit, formerly ConvertKit, is built for creators who sell knowledge, courses, memberships, and digital products. Its core strength is a tag-based subscriber model and visual automation builder that let you trigger sequences off of behavior without wrestling with rigid list structures. Forms, landing pages, and a simple commerce layer for selling digital products are included, which suits solo creators and small teams. At around 15,000 subscribers you will be on a paid plan priced by subscriber count, and Kit's pricing climbs with your list. The tradeoff is that Kit does less than a full marketing suite. If your needs are email sequences, sign-up growth, and selling your own offers, that focus is a feature rather than a limitation.

Mailchimp: feature breadth, e-commerce strengths, and cost at scale

Mailchimp is a broad marketing platform, not just email. It offers e-commerce integrations, product retargeting, a CRM-style audience view, landing pages, social posting, and reporting that many small businesses rely on. If you run an online store or want marketing tools that reach beyond the inbox, that breadth is genuinely useful, and its integrations with major e-commerce systems are mature. The cost side is where creators get cautious. Mailchimp prices by contacts and gates features behind higher tiers, and it counts contacts in ways that can inflate your billable number. At 15,000 subscribers the bill can be meaningful, and some advanced automation and segmentation sit on the more expensive plans. For a content creator who only sends newsletters, you may pay for capabilities you never use.

Pricing comparison at 15k and as you grow past it

Both Kit and Mailchimp charge by subscriber or contact count, so 15,000 is a real cost step on either one, and both keep climbing as you grow. Kit's bill is tied fairly directly to subscriber tiers, which makes it predictable but not cheap as your audience scales. Mailchimp's cost depends on both contact count and which feature tier you choose, so two creators with the same list size can pay very different amounts. The practical advice is to model your bill at 15k, 30k, and 50k before committing, because subscriber-based pricing compounds. Also check how each platform counts unsubscribed or inactive contacts, since that affects what you actually pay. Cleaning your list regularly is one of the few levers you control on both.

When a newsletter-first platform like beehiiv makes more sense

If your business is the newsletter itself rather than a store or a course funnel, a platform built specifically for newsletters can fit better than either general tool. beehiiv is an all-in-one platform for creators, publishers, and businesses to create, grow, and monetize email newsletters. It includes website building, analytics, an ad network, and paid subscriptions, so the growth and monetization pieces a newsletter operator cares about live in one place. That matters at 15,000 subscribers, where you are likely thinking about turning audience into revenue. If you do not need Mailchimp's e-commerce breadth or Kit's course-selling tools, and your priority is publishing and monetizing a newsletter, beehiiv belongs in the comparison.

Recommendation by creator type

Choose Kit if you sell your own digital products, courses, or memberships and want creator-native automation and tagging without setup overhead. Choose Mailchimp if you run an e-commerce store or need marketing tools that extend beyond email, and the wider feature set justifies the cost. Consider beehiiv if your business is primarily a newsletter and you want publishing, audience growth, an ad network, and paid subscriptions built around that single goal. Whichever you pick, model your cost as the list grows and prioritize the platform whose core strength matches how you actually make money. At 15,000 subscribers, paying for unused breadth is the most common and most avoidable mistake.

Bottom line

Pick Kit if you sell your own products and want creator-native automation, and pick Mailchimp if you run a store or need marketing breadth beyond email. At 15,000 subscribers both cost real money, so model your bill before committing. If your business is the newsletter itself, compare beehiiv too, since it is built specifically to create, grow, and monetize newsletters. Match the platform to how you actually earn revenue, not to the longest feature list.

Frequently asked questions

Is Kit or Mailchimp cheaper at 15,000 subscribers?: It depends on the Mailchimp feature tier you choose, since Mailchimp prices by both contacts and plan level while Kit prices mainly by subscriber count. Model both at your exact list size before deciding, and check how each counts inactive contacts.
Which has better deliverability for a 15k list?: Both can deliver well at this size if you authenticate your domain and keep your list clean. Deliverability at 15,000 subscribers depends more on your sending habits and list hygiene than on the platform brand.
Should an e-commerce creator pick Mailchimp?: Often yes. Mailchimp's e-commerce integrations, product retargeting, and broader marketing tools are a genuine strength for store owners who want more than email.
When does beehiiv make more sense than Kit or Mailchimp?: When your business is the newsletter itself. beehiiv is built to create, grow, and monetize newsletters with website building, analytics, an ad network, and paid subscriptions in one platform.
Does Kit support selling courses and memberships?: Kit is designed around creators selling their own digital products and includes commerce and automation tools suited to courses, memberships, and sequences.
How do I avoid overpaying as my list grows past 15k?: Model your cost at 30k and 50k before committing, clean inactive subscribers regularly, and choose the platform whose core strength matches how you make money rather than paying for unused features.