Versus Engine
Fermyon Spin vs Supabase
Specs, price and the one trade-off that actually decides it — Fermyon Spin against Supabase, side by side.
Cheaper to start
Tie
Both start at a similar price.
Best ecosystem
Tie
Neither lists native integrations.
Standout
Fermyon Spin
Instant Cold Starts
Fermyon Spin
Framework for building and running serverless WebAssembly (Wasm) applications.
Where it wins, where it doesn't
Pros
- Massively reduces cloud compute costs
- Secure sandbox execution
Cons
- WASI standard is still evolving
Supabase
Postgres you actually own, with the developer experience of a managed backend and none of the Firebase lock-in. Expects you to know some SQL.
Where it wins, where it doesn't
Pros
- Full power of raw PostgreSQL
- Excellent developer experience and documentation
- No vendor lock-in compared to Firebase
Cons
- Requires basic SQL knowledge for complex tasks
- Self-hosting can be challenging to manage
- Edge functions sometimes have cold start delays