Customer.io Review
EMAIL MARKETING SOFTWAREChoose Customer.io when product-led, event-driven messaging is the primary job — not classic list-blast email marketing.
Starting price
$100.00/user/month
Free plan
No
Free trial
14 days
Best for
Product-led teams sending event-driven multi-channel messages
SoftwareGlimpse review
7.1/10
Good
- Ease of use6
- Email creation7
- Automation9
- Segmentation8
- Analytics7
- Deliverability tooling6
Customer.io plans & pricing
Verified 2026-08-17 from customer.io/pricing and corroborated plan tables. Essentials from $100/mo for 5,000 profiles + 1M emails/mo; overages ~$0.009/profile and ~$0.12/1k emails researched. Premium from $1,000/mo. Enterprise custom. 14-day trial. Confirm live calculator — do not invent custom-quote dollars beyond published floors.
Essentials
$100.00
per month
- Small teams starting with core workflows
Premium
$1,000.00
per month
- Everything in Essentials, plus:
- Teams with advanced workflow and scale needs
Enterprise
Custom
Contact sales
- Everything in Premium, plus:
- Organizations needing custom commercial terms
Estimate team cost
Rough monthly and annual cost for Customer.io based on list pricing. Confirm rates on the vendor site before buying.
- Monthly
- $500.00
- Annual
- $6,000.00
Customer.io pricing compared
| Metric | Customer.io | Braze | ActiveCampaign | Klaviyo | Brevo |
|---|---|---|---|---|---|
| Starting price | $100.00/user/month | Custom quote | $15.00/user/month | $20.00/user/month | $9.00/user/month |
| Free plan | No | No | No | Yes | Yes |
| Free trial | Yes | Yes | Yes | No | No |