Customer.io vs Sendlane
Both are in Marketing automation. Here is how their plans, prices and features compare, taken from each vendor's own site.
The main differences
- Fees: Customer.io Starts at, for 5k profiles, Starts at, billed yearly, Custom; talk to sales; Sendlane Unlimited profiles; $2.00 CPM overage, Annual contracts only.
| Customer.io | Sendlane | |
|---|---|---|
| Starting price | from $100/mo | from $100/mo |
| Free plan | No | No |
| Free trial | Not stated by the vendor | Not stated by the vendor |
| Plans | Essentials ($100/mo); Premium ($1000/mo annual); Enterprise () | 50,000 emails a month ($100/mo); Enterprise support tiers () |
| Fees | Starts at, for 5k profiles; Starts at, billed yearly; Custom; talk to sales | Unlimited profiles; $2.00 CPM overage; Annual contracts only |
| 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) | Email and SMS automation; Unlimited contacts and profiles; Sending from a Tier 1 ESP; Proactive deliverability monitoring |
| Checked on | 2026-10-03 | 2026-10-03 |
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
Sendlane
- Pay for sends, not profiles
- 24/7/365 chat support on every plan
- SMS from $0.009 per credit, carrier fees included
Trade-offs
- Entry price is $100 a month for 50,000 emails
- CPM overage is $2.00 per thousand emails
- Dedicated support services are for annual contracts only
- The page says Sendlane has been acquired by Privy