Head-to-head
Customer.io vs Thirdshelf
Two leading email marketing tools, compared on pricing, features, and editorial fit. Updated for 2026.
Thirdshelf
Customer loyalty program for Lightspeed, Vend and Heartland Retail POS
From $10/mo
Visit ThirdshelfAt a glance
| Customer.io | Thirdshelf | |
|---|---|---|
| Tagline | Messaging that actually fits your data. | Customer loyalty program for Lightspeed, Vend and Heartland Retail POS |
| Pricing model | Paid | Freemium |
| Starts at | $100/mo | $10/mo |
| Founded | 2012 | — |
| AI-native | ||
| Categories | Email Marketing, Automation | SMS & Push, Email Marketing, Customer Data Platforms |
| Vendor claimed |
Quick take
Pick Customer.io if you need messaging that actually fits your data. Pick Thirdshelf if you need customer loyalty program for lightspeed, vend and heartland retail pos.
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Frequently asked
- Is Customer.io better than Thirdshelf?
- It depends on your use case. Customer.io is messaging that actually fits your data, while Thirdshelf is customer loyalty program for lightspeed, vend and heartland retail pos. See the comparison above for which fits your team.
- What's the price difference between Customer.io and Thirdshelf?
- Customer.io starts at $100/mo. Thirdshelf starts at $10/mo.
- Can I migrate from Customer.io to Thirdshelf?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.