PlanetScale vs Firebase

At a Glance

PlanetScale

Firebase

PlanetScale

Firebase

PlanetScale

Pros

Branching model for database schema changes means you never run a raw ALTER TABLE in production again — a game changer for team workflows+183
Zero-downtime schema migrations are solved by default — no more 3am maintenance windows for adding a column+162
Vitess under the hood means it handles enormous write throughput that would kill a vanilla Postgres setup+147
The query insights dashboard identifies slow queries with execution plans before they become production incidents+109

Cons

They killed the free tier in 2024 and the cheapest plan is $39/mo — hard to justify for early-stage projects that might not survive

Database

Supabase vs Firebase vs PlanetScale

Database

PlanetScale vs Neon

Database

Supabase vs Neon vs PlanetScale

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Firebase

Pros

The free Spark plan is surprisingly capable and you can prototype an entire app without a credit card+156
Realtime database sync across clients is dead simple and the SDK handles reconnection and offline state for you+143
Firebase Auth handles phone number verification, Google OAuth, and anonymous users with about 10 lines of code+129
The Emulator Suite lets you run everything locally including Firestore, Auth, and Cloud Functions with full fidelity+108
Google's infrastructure means you get truly global low-latency reads without any configuration+91

Cons

Vendor lock-in is severe — the client SDK is so deeply embedded in your app that migrating away took my team two full weeks+199
NoSQL Firestore makes complex queries painful — I rewrote a feature three times trying to avoid needing a proper join+189
Pricing can spike unexpectedly because reads are charged per document, and a single inefficient query can cost dollars instead of cents+176
There's no way to do schema migrations or version your data model, so evolving your data structure over time is a manual nightmare+134
Cloud Functions cold starts on the free tier are often 3-5 seconds, which makes them useless for user-facing request handlers+118