ConvertKit vs Customer.io
Both are Email Marketing tools. Below, the differences that matter: verified pricing, editorial scores and who each one is really for.
ConvertKit: ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators. Pricing: from from $33/mo. (data verified June 2026)
Customer.io: Send automated emails, push notifications, and SMS based on user behavior—no engineering help required. Pricing: from from $100/mo. (data verified June 2026)
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At a glance
 ConvertKit ◆ |
 Customer.io | |
|---|---|---|
| Rating | — | — |
| Pricing | from $33/mo | from $100/mo |
| Pricing model | Freemium | Freemium |
| Category | Email Marketing | |
| Visit website → | Visit website → | |
Editorial scorecard
Editorial score from our review methodology — not user ratings.
| Ease of use | 8.5 | 7.5 |
| Features depth | 7.5 | 8.5 |
| Value for money | 7.0 | 7.0 |
| Support quality | 7.5 | 6.5 |
| Integrations | 6.5 | 7.5 |
| Scalability | 7.0 | 8.0 |
| Documentation | 8.0 | 7.0 |
| Onboarding speed | 8.5 | 6.5 |
| Overall | 7.6 | 7.3 |
Frequently asked questions
What is ConvertKit?
ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.
What is Customer.io?
Send automated emails, push notifications, and SMS based on user behavior—no engineering help required.
How much do ConvertKit and Customer.io cost?
ConvertKit: from $33/mo. Customer.io: from $100/mo.
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