Brevo vs Customer.io: Which Should You Choose in 2026?
Both prices below were read from each vendor's own pricing page on the date shown.
Pricing side by side
| Plan | Brevo | Customer.io |
|---|---|---|
| tier 1 | Free — 5,000 emails a month, unlimited contacts | $100/mo — From $100/mo for 5,000 profiles (people and objects) |
| tier 2 | $9/mo — From 5,000 emails a month | $1000/mo — From $1,000/mo billed yearly — custom profile volume |
| tier 3 | $18/mo — From 10,000 emails a month | On request — Dedicated infrastructure and support |
| tier 4 | $499/mo — From 150,000 emails a month | — |
| tier 5 | On request — Custom, full data control | — |
read from both vendors' pricing pages · 20 Aug 2026 · how we verify
Choose Brevo if
- Anyone with a large list mailed rarely — contacts are not the billing unit
- Small senders: 5,000 emails a month costs nothing
Choose Customer.io if
- Product teams triggering messages off events rather than segments
- Funded startups under $10M raised — the first year is free
Where each one disappoints
Brevo
- High-frequency senders — the jump from Standard to Professional is $18 to $499
Customer.io
- Products with many objects per user — profiles count objects too, not just people
Compiled by Stepan Noianov from both vendors' own sites. Something wrong? Report an inaccuracy.