Firebase vs PlanetScale Comparison
Comparing Firebase (Google's Backend-as-a-Service with Firestore) and PlanetScale (serverless MySQL). We analyze NoSQL vs SQL, platform breadth, branching workflows, and pricing.
Firebase
App development platform backed by Google.
Primary Task
Backend as a Service
Pricing
FreemiumKey Features
- Realtime Database
- Auth
- Hosting
PlanetScale
The world's most advanced serverless MySQL platform.
Primary Task
Serverless MySQL
Pricing
PaidKey Features
- Horizontal Sharding
- Non-blocking Schema Changes
- Branching
At a Glance
| Feature | Firebase | PlanetScale |
|---|---|---|
| Database Type | Firestore (NoSQL) | MySQL (SQL) |
| Built-in Auth | Yes (Firebase Auth) | No |
| File Storage | Yes (Firebase Storage) | No |
| Realtime | Yes (built-in) | No |
| Branching | No | Yes (database branches) |
| Schema Management | Schema-less | Schema with safe migrations |
| Horizontal Scaling | Automatic | Vitess sharding |
| Connection Pooling | N/A | Built-in |
| Free Tier | 1GB storage | 5GB storage, 1B row reads |
| Pricing Start | Pay-per-use | $39/mo (Scaler) |
Pros & Cons
Firebase
Strengths
- Complete backend solution (auth + DB + storage)
- Realtime synchronization built-in
- Schema-less flexibility
- Google Cloud infrastructure
Limitations
- NoSQL only (no SQL joins)
- No database branching workflow
- Can get expensive at scale
- Vendor lock-in to Google
PlanetScale
Strengths
- MySQL with modern workflow (branching)
- Schema migration tools built-in
- Horizontal scaling with Vitess
- More predictable pricing
Limitations
- Database only (no auth, storage)
- Higher starting price ($39/mo vs free)
- No realtime features
- Requires separate backend services
The Verdict
Choose based on your need for BaaS vs database workflow focus.
Choose Firebase
Best for
- You want a complete backend (auth + database + storage).
- NoSQL/document data model works for you.
- Realtime sync is critical.
- You prefer all-in-one simplicity.
Choose PlanetScale
Best for
- You need MySQL/SQL with joins and relations.
- Database branching workflow is valuable.
- You're building a complex, scalable SQL app.
- You're comfortable adding auth/storage separately.
Frequently Asked Questions
Can PlanetScale do realtime like Firebase?
No, PlanetScale is pure database with no realtime features. For realtime, you'd need to add a separate solution (WebSockets, Pusher, etc.). Firebase has realtime built-in.
What is database branching in PlanetScale?
Like git branches for your database. Create a branch, test schema changes, then merge to production. Firebase doesn't have this—its NoSQL is schema-less.
Which is better for startups?
Firebase is easier for MVPs (complete backend, no setup). PlanetScale is better if you know you need MySQL and proper database workflows from day one.
Does Firebase support MySQL?
No, Firebase uses Firestore (NoSQL). If you need MySQL specifically, use PlanetScale, Supabase (Postgres), or other SQL databases.
Can I migrate from Firebase to PlanetScale?
Yes but painful. Transform NoSQL documents → SQL tables, rewrite queries, rebuild auth/storage. Major undertaking. Choose correctly upfront.