Quick Verdict
Choose Clerk if:
You need react apps or next.js
Choose Firebase if:
You need mobile apps or prototypes
Feature Comparison
| Feature | Clerk | Firebase |
|---|---|---|
| Free tier | ||
| Starting price | Custom | Custom |
| G2 Rating | 4.8/5 | 4.5/5 |
| API Available |
Pricing Comparison
Monthly Cost by Team Size
* Pricing estimates based on standard paid plans. Actual costs may vary.
Clerk
Pros
- Beautiful UI
- Easy integration
- Great React support
- Organizations
Cons
- Newer platform
- Limited customization
- Pricing can add up
Firebase
Pros
- Easy to start
- Real-time
- Great for mobile
- Google ecosystem
Cons
- Vendor lock-in
- Pricing unpredictable
- Complex queries limited