Head-to-head
Customer.io vs Postscript
Two leading email marketing / automation tools, compared on pricing, features, and editorial fit. Updated for 2026.
At a glance
| Customer.io | Postscript | |
|---|---|---|
| Tagline | Messaging that actually fits your data. | AI retention marketing platform for SMS, RCS, and email |
| Pricing model | Paid | Paid |
| Starts at | $100/mo | Free |
| Founded | 2012 | — |
| AI-native | ||
| Categories | Email Marketing, Automation | SMS & Push, Email Marketing, Automation |
| Vendor claimed |
Quick take
Pick Customer.io if you need messaging that actually fits your data. Pick Postscript if you need ai retention marketing platform for sms, rcs, and email.
Browse more
Customer.io alternatives →
Browse more
Postscript alternatives →
Frequently asked
- Is Customer.io better than Postscript?
- It depends on your use case. Customer.io is messaging that actually fits your data, while Postscript is ai retention marketing platform for sms, rcs, and email. See the comparison above for which fits your team.
- What's the price difference between Customer.io and Postscript?
- Customer.io starts at $100/mo. Postscript starts at Free.
- Can I migrate from Customer.io to Postscript?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.