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Customer.io vs Kit
Both sit in email marketing. Here is how they differ on the things you can actually check.
On price: Kit starts $67 a month cheaper than Customer.io ($33 against $100, 67% less) on its Creator tier. Both figures were read from the vendors' own pricing pages on the dates shown below.
Customer.io
customer.io
Triggers messages from product events rather than lists — email, push, in-app and SMS driven by what a user actually did. Data-warehouse-friendly.
Email Marketing
Visit Customer.io| Customer.io | Kit | |
|---|---|---|
| Entry price | $100/mo | $33/mo |
| Entry plan | Essentials | Creator |
| Paid annually | — | $33/mo |
| Price checked | 21 Sept 2026 | 21 Sept 2026 |
| Pricing model | Free trial | Free plan |
| Free plan | No | Yes |
| Category | Email Marketing | Email Marketing |
| Around since | 2012 | 2013 |
Every price here was read from the vendor's own pricing page, most recently on 21 Sept 2026. Entry tier only — vendors change pricing without notice.
Customer.io vs Kit, answered
- Is Customer.io cheaper than Kit?
- No — Kit is the cheaper entry point, at $33 a month against Customer.io's $100, 67% less. Kit's figure is its annual rate — the vendor publishes no month-to-month price we could read.
- Do Customer.io or Kit have a free plan?
- Kit publishes an ongoing free plan; Customer.io does not.
- What is the difference between Customer.io and Kit?
- Customer.io: Triggers messages from product events rather than lists — email, push, in-app and SMS driven by what a user actually did. Data-warehouse-friendly. Kit: Formerly ConvertKit. Tag-based subscriber model, visual automations, paid newsletter support and a creator recommendation network. Strong fit for writers and course sellers.
