| Feature | ActiveCampaign | Customer.io |
|---|---|---|
| Email Marketing | ✅ Advanced | ✅ Advanced |
| Automation | ✅ Visual builder | ✅ Event-driven |
| CRM | ✅ Built-in | ❌ Not included |
| Segmentation | ✅ Advanced | ✅ Dynamic (Liquid) |
| Multi-Channel | ✅ Limited | ✅ Advanced |
| API & Integrations | ✅ Good | ✅ Excellent |
| Feature | ActiveCampaign | Customer.io |
|---|---|---|
| Native Integrations | ✅ Extensive | ✅ Limited |
| API Quality | ✅ Good | ✅ Excellent |
| Data Warehouse Support | ❌ Limited | ✅ Strong |
| Real-time Data Processing | ✅ Good | ✅ Excellent |
| Bi-directional Syncing | ✅ Yes | ❌ Limited |
| Complex Data Structures | ❌ Limited | ✅ Excellent |
| Plan | ActiveCampaign (500 contacts) | Customer.io (12,000 tracked users) |
|---|---|---|
| Basic | $15/month (Lite) | $150/month (Basic) |
| Mid-tier | $70/month (Plus) | $995/month (Premium) |
| Advanced | $187/month (Professional) | Custom (Enterprise) |
| Enterprise | Custom | Custom |