AI Marketing ToolsThings 3
★★★★☆
4.5/5Read Review →Nov 14
AI Marketing Tools
Things 3 vs Customer.io
Honest comparison for 2026 — features, pricing, and verdict
Things 3
★★★★☆(4.5/5)
vs
Customer.io
★★★★☆(4.5/5)
Last updated March 29, 2026
Quick Overview
| Attribute | Things 3 | Customer.io |
|---|---|---|
| Rating | ★★★★☆(4.5/5) | ★★★★☆(4.5/5) |
| Pricing | Paid | Paid |
| Category | AI Marketing Tools | Email Marketing |
| Top features |
|
|
| Full review | Read Things 3 review | Read Customer.io review |
Feature Comparison
| Feature | Things 3 | Customer.io |
|---|---|---|
| Task management | ||
| Project organization | ||
| Notes and lists | ||
| Calendar integration | ||
| Reminders and notifications | ||
| Cross-platform sync | ||
| Collaboration tools | ||
| Tagging system | ||
| Email automation | ||
| Customer segmentation | ||
| Behavioral triggers | ||
| A/B testing | ||
| Customer journey mapping | ||
| SMS messaging | ||
| Landing page builder | ||
| Analytics and reporting |
Pricing Comparison
Strengths and Weaknesses
Things 3
Customer.io
Which Should You Choose?
Both Things 3 and Customer.io are strong ai marketing tools tools. We recommend reading the full reviews to understand which fits your specific workflow better.
Read the Full Reviews
More Comparisons
Common Questions
What is the difference between Things 3 and Customer.io?
Things 3 and Customer.io are both ai marketing tools tools, but they differ in features, pricing, and target audience. Read our detailed comparison above for a side-by-side breakdown.
Which is better, Things 3 or Customer.io?
The better choice depends on your specific needs. Things 3 may be better for some use cases, while Customer.io excels in others. Check the "Which Should You Choose?" section for personalized guidance.
Can I switch from Things 3 to Customer.io?
Most ai marketing tools tools support data export and import. Check both tools' documentation for migration guides and compatibility details.