Customer.io vs OneSignal
Both are in Marketing automation. Here is how their plans, prices and features compare, taken from each vendor's own site.
The main differences
- OneSignal's cheapest paid plan is $19/mo, against $100/mo for Customer.io.
- OneSignal has a free plan; Customer.io does not.
- Fees: Customer.io Starts at, for 5k profiles, Starts at, billed yearly, Custom; talk to sales; OneSignal states none.
| Customer.io | OneSignal | |
|---|---|---|
| Starting price | from $100/mo | Free plan · from $19/mo |
| Free plan | No | Yes |
| Free trial | Not stated by the vendor | Not stated by the vendor |
| Plans | Essentials ($100/mo); Premium ($1000/mo annual); Enterprise () | Free ($0); Growth ($19/mo) |
| Fees | Starts at, for 5k profiles; Starts at, billed yearly; Custom; talk to sales | Not stated |
| Best for | Not stated | Not stated |
| Key features | Visual workflow builder; AI Agent with core execution skills; 1 million emails a month on Essentials; Object types (2 on Essentials, 10 on Premium) | Messaging across all channels; Journeys (3 on Free, 5 on Growth, 20 on Professional); Basic automation and analytics; Personalization |
| Checked on | 2026-10-03 | 2026-10-05 |
Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.
Customer.io
- Essentials is billed monthly from $100
- A full year of Customer.io free for early-stage startups under $10M raised
- Priced by profiles, with custom volume pricing on higher plans
Trade-offs
- Premium starts at $1,000 a month billed yearly
- Essentials covers 5k profiles and email and community support
- Enterprise is quoted
OneSignal
- Free plan across all channels
- Growth starts at $19 a month
- Usage-based pricing for push and email
Trade-offs
- Free is limited to 3 active journeys
- Growth push is charged per monthly active user and subscriber
- Professional and Enterprise are by quote