Convex
Firebase
| Feature | Convex | Firebase |
|---|---|---|
| Pricing | Free / from $25/mo | Free / from $0/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | full-stack-developers, real-time-apps, startups, rapid-prototyping | mobile-developers, startups, prototypers, small-teams |
| Founded | 2021 | 2012 |
| Real Time Database | ✓ | ✗ |
| Serverless Functions | ✓ | ✗ |
| File Storage | ✓ | ✗ |
| Authentication | ✓ | ✓ |
| Scheduling | ✓ | ✗ |
| Vector Search | ✓ | ✗ |
| Firestore | ✗ | ✓ |
| Cloud Functions | ✗ | ✓ |
| Hosting | ✗ | ✓ |
| Storage | ✗ | ✓ |
| Analytics | ✗ | ✓ |
| Crashlytics | ✗ | ✓ |
✓ Convex Pros
- Real-time by default
- TypeScript-first
- Built-in auth and file storage
- Automatic caching
✗ Convex Cons
- Vendor lock-in
- Newer platform
- Limited to Convex runtime
✓ Firebase Pros
- Generous free tier (Spark plan)
- Real-time database syncing
- Simple authentication setup
- Excellent for mobile apps
✗ Firebase Cons
- NoSQL can be limiting for complex queries
- Costs unpredictable at scale
- Vendor lock-in with Google
The Verdict
Convex is built for full stack developers and real time apps, with a focus on real-time-database and serverless-functions. Firebase targets mobile developers and startups and leads with firestore and authentication.
On pricing, Firebase is the clear winner for budget-conscious users — starting at $0/mo compared to $25/mo for Convex. That $25/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Firebase offers broader built-in capabilities (7 features vs 6), while Convex takes a more focused approach — which can mean a simpler, faster onboarding experience.
Both tools are a solid fit for startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.