Head-to-head
Customer.io vs FollowUp
Two leading email marketing tools, compared on pricing, features, and editorial fit. Updated for 2026.
FollowUp
Email reminders, follow-ups, and open tracking for Gmail and Salesforce
From $18/mo
Visit FollowUpAt a glance
| Customer.io | FollowUp | |
|---|---|---|
| Tagline | Messaging that actually fits your data. | Email reminders, follow-ups, and open tracking for Gmail and Salesforce |
| Pricing model | Paid | Paid |
| Starts at | $100/mo | $18/mo |
| Founded | 2012 | — |
| AI-native | ||
| Categories | Email Marketing, Automation | Sales Engagement, Email Marketing, CRM |
| Vendor claimed |
Quick take
Pick Customer.io if you need messaging that actually fits your data. Pick FollowUp if you need email reminders, follow-ups, and open tracking for gmail and salesforce.
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Customer.io alternatives →
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FollowUp alternatives →
Frequently asked
- Is Customer.io better than FollowUp?
- It depends on your use case. Customer.io is messaging that actually fits your data, while FollowUp is email reminders, follow-ups, and open tracking for gmail and salesforce. See the comparison above for which fits your team.
- What's the price difference between Customer.io and FollowUp?
- Customer.io starts at $100/mo. FollowUp starts at $18/mo.
- Can I migrate from Customer.io to FollowUp?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.