ConvertKit vs Mailchimp
Side-by-side total cost of ownership: subscription fees, labor, hidden costs, and AI alternatives.
Published pricing
The subscription is only part of the cost.
| ConvertKit | Mailchimp | |
|---|---|---|
| Published rate | $39/seat/mo | $13/mo |
| Team size modeled | 1 | 5 |
| Annual subscription | $468/yr | $780/yr |
What the invoice doesn't show
ConvertKit
Kit's Newsletter plan (free) supports up to 10,000 subscribers but blocks visual automations, sequences, and third-party integrations. The features that make email marketing effective require Creator ($39/mo, up 35% since September 2025) or Creator Pro ($79/mo).
Pricing scales steeply with subscriber count after the September 2025 increase. At 25,000 subscribers, Creator costs $99/mo and Creator Pro $166/mo. At 55,000 subscribers, Creator Pro hits $340/mo — well into enterprise tool pricing for what remains a creator-focused platform.
Kit lacks built-in A/B testing for email content (only subject lines). There's no send-time optimization, no multivariate testing, and limited segmentation compared to marketing automation platforms at similar price points.
Kit's visual automation builder, while praised for simplicity, can't handle complex conditional logic. Users report needing to build workarounds with tags and segments for workflows that tools like ActiveCampaign handle natively.
Mailchimp
Mailchimp counts ALL contacts toward your billing tier — subscribed, unsubscribed, and non-opted-in. Unsubscribed contacts remain billable unless you manually archive them. A company with 10,000 'contacts' might have 3,000 active subscribers but pays the 10,000-tier rate.
Mailchimp deprecated the Classic Automation Builder in June 2025, pushing multi-step automations exclusively into the Standard plan ($20/mo minimum). Organizations running basic welcome sequences on Free or Essentials were forced to upgrade overnight.
When you exceed your contact or send limit, Mailchimp automatically adds extra email blocks and charges your next invoice — without an upgrade prompt or warning. The exact overage pricing isn't publicly listed, making costs impossible to predict.
Since Intuit acquired Mailchimp for $12B in 2021, pricing has increased 20-30% across paid tiers (Essentials from $9 to $13, Standard from $14 to $20), the free plan was gutted from 2,000 contacts to 250 — an 87.5% reduction — and an additional 11-13% increase was implemented in April 2026, pushing Premium's base to $375+/mo.
What teams are switching to
Replacing ConvertKit
Beehiiv
Free (2.5K subs), $49/mo (Scale), $99/mo (Max)
Newsletter platform built for growth with AI writing tools, built-in referral program, and ad network for monetization. Free plan includes unlimited sends and up to 2,500 subscribers. Designed for the creator economy Kit pioneered.
MailerLite
Free (1K subs), $10/mo (Growing), $20/mo (Advanced)
Full visual automation on paid plans starting at $10/mo vs Kit's $29/mo. AI writing assistant, A/B testing (not just subject lines), and send-time optimization included. More features at a lower price point.
Buttondown
Free (100 subs), $9/mo (Basic), $29/mo (Professional)
Minimalist newsletter tool for writers who want clean design without bloat. Markdown-native editor, built-in analytics, and paid subscription support. Free for up to 100 subscribers.
Replacing Mailchimp
Brevo
Free (300 emails/day), Starter $9/mo, Business $18/mo
Charges by emails sent, not contacts stored. Unlimited contacts on all plans including free. Includes transactional email, SMS, and WhatsApp in one platform. A 50,000-contact list sending 50K emails/mo costs ~$35/mo vs Mailchimp's $450+.
Kit (formerly ConvertKit)
Free (10K subscribers), Creator $39/mo
Creator-focused with visual automation builder on all paid plans. Free plan supports up to 10,000 subscribers — 40x Mailchimp's free tier. No charge for unsubscribed contacts.
Loops
Free (1K contacts), $49/mo (5K contacts, unlimited sends)
Built for SaaS companies. One flat tier with all features — no feature gating at all. Includes marketing, transactional, and product emails in one platform. Unlimited sends on all paid plans.
StackCut doesn't sell or recommend any of these tools. We show them for context. The decision is yours.
Total Cost of Ownership
Subscription fees plus labor and error costs, modeled at $50/hr loaded rate (BLS ECEC).
| Cost Component | ConvertKit | Mailchimp |
|---|---|---|
| Annual subscription | $468 | $780 |
| Labor cost | $9,000 | $9,000 |
| Error & rework cost | $1,200 | $1,200 |
| Total Cost of Ownership | $10,668/yr | $10,980/yr |
| Est. AI alternative | $5,088/yr | $5,088/yr |
Labor rate based on BLS ECEC June 2025 ($45.65/hr private industry total compensation, rounded to $50). Team sizes differ because each vendor targets different market segments. Your actual numbers depend on team size, role mix, and usage. Run it with your own data.
Which one fits your team?
Both ConvertKit and Mailchimpcost more than their published pricing suggests. The right choice depends on your team size and how you weigh each tool's trade-offs.
ConvertKit starts at $39/seat/mo , but watch for Kit's Newsletter plan (free) supports up to 10,000 subscribers but blocks visual automations, sequences, and third-party integrations. The features that make email marketing effective require Creator ($39/mo, up 35% since September 2025) or Creator Pro ($79/mo).
Mailchimp starts at $13/mo , but watch for Mailchimp counts ALL contacts toward your billing tier — subscribed, unsubscribed, and non-opted-in. Unsubscribed contacts remain billable unless you manually archive them. A company with 10,000 'contacts' might have 3,000 active subscribers but pays the 10,000-tier rate.
An AI-native alternative may replace the workflow at a fraction of the TCO.
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