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