Customer.io vs Sender

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Customer.io

See full pricing history

USD · US · source: customer.io

Plan	Pricing	Charged by	Offer type
Essentials	USD 100 monthly Starts at $100/month billed monthly	Flat · per month	Standalone · Starting at
Premium Highlighted	USD 1000 / month with annual commitment Starts at $1,000/month billed yearly	Flat · per month	Standalone · Starting at

Sender

See full pricing history

USD · US · source: www.sender.net

Plan	Pricing	Charged by	Offer type
Free Forever	Free $0/month	Flat · per month	Standalone · Free
Standard	USD 7 monthly $7/month for 1,000 subscribers and 12,000 emails/month	Flat · per month	Standalone · Fixed
Professional Highlighted	USD 14 monthly $14/month for 1,000 subscribers and 24,000 emails/month	Flat · per month	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Customer.io

Essentials

Plan card Profiles: 5,000

Included
Plan card Emails: 1 million/month

Included
Plan card Visual workflow builder: Included

Premium

Plan card Unlimited workspaces: Included
Plan card Advanced governance: Included
Plan card Dedicated implementation support: Included

Sender

Free Forever

Plan card Subscribers: 2,500

Included
Plan card Emails: 15,000/month

Included
Plan card Email automation: Included

Standard

Plan card Role-based seats: 3

Included
Plan card A/B testing: Included
Plan card Unlimited landing pages: Included

Professional

Plan card Role-based seats: 10

Included
Plan card Advanced automation: Included
Plan card Advanced ecommerce reports: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Customer.io

August 27, 2026 Source
- Essentials: USD 100 monthly
- Premium: USD 1000 / month with annual commitment

Sender

August 27, 2026 Source
- Free Forever: Free
- Standard: USD 7 monthly
- Professional: USD 14 monthly