Head-to-head
AddEvent vs Customer.io
Two leading email marketing tools, compared on pricing, features, and editorial fit. Updated for 2026.
AddEvent
Add to Calendar buttons, RSVP forms, and subscription calendars for events
From $29/mo
Visit AddEventAt a glance
| AddEvent | Customer.io | |
|---|---|---|
| Tagline | Add to Calendar buttons, RSVP forms, and subscription calendars for events | Messaging that actually fits your data. |
| Pricing model | Paid | Paid |
| Starts at | $29/mo | $100/mo |
| Founded | — | 2012 |
| AI-native | ||
| Categories | Forms & Surveys, Email Marketing, Events & Webinars | Email Marketing, Automation |
| Vendor claimed |
Quick take
Pick AddEvent if you need add to calendar buttons, rsvp forms, and subscription calendars for events. Pick Customer.io if you need messaging that actually fits your data.
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AddEvent alternatives →
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Frequently asked
- Is AddEvent better than Customer.io?
- It depends on your use case. AddEvent is add to calendar buttons, rsvp forms, and subscription calendars for events, while Customer.io is messaging that actually fits your data. See the comparison above for which fits your team.
- What's the price difference between AddEvent and Customer.io?
- AddEvent starts at $29/mo. Customer.io starts at $100/mo.
- Can I migrate from AddEvent to Customer.io?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.