Comparisons / Supabase vs Firebase
Supabase vs Firebase for vibe-coded apps (2026)
Supabase vs Firebase for AI-built apps: verdict, free tiers and pricing checked 16 Oct 2026, who each is best for, and FAQs.
The short answer
For vibe-coded web apps, Supabase is the default: Postgres, auth and storage, with built-in support in tools like Lovable and Bolt, plus new agent-friendly code-first features. Firebase is a solid alternative if you're in the Google ecosystem; its Spark plan needs no payment method.
Side by side
| Supabase | Firebase | |
|---|---|---|
| Best for | Postgres, auth and storage for vibe-coded apps | Google-backed backend (auth, database, hosting) with a no-cost starter plan |
| Category | Deployment & backend | Deployment & backend |
| Free tier | Yes | Yes (Spark plan: no-cost usage limits, no payment method needed) |
| Entry price | From $25/month (Pro) | Pay as you go (Blaze plan); eligible new users may get $300 free credit |
| Pros | Works with Lovable/Bolt | No payment method needed on Spark |
| Cons | Free projects pause when idle | Not ranked by ShipRank yet; pros/cons not independently reviewed |
| ShipRank rank | #2 in Deployment & backend | Not ranked |
Who should pick what
- Supabase
- Anyone building with Lovable/Bolt or wanting a SQL (Postgres) database their agent can manage from code.
- Firebase
- Builders already on Google Cloud or wanting to start with no card on file.
What they cost
- Supabase: free tier Yes; paid from From $25/month (Pro). Pricing page, checked 25 Oct 2026.
- Firebase: free tier Yes (Spark plan: no-cost usage limits, no payment method needed); paid from Pay as you go (Blaze plan); eligible new users may get $300 free credit. Pricing page, checked 16 Oct 2026.
Prices in USD as shown on official pages. Anything marked unknown/unverified could not be confirmed.
Questions people ask
Which is free?
Both: Supabase has a $0 Free plan (free projects pause when idle); Firebase's Spark plan is no-cost with no payment method needed.
What do paid plans cost?
Supabase Pro starts at $25/month. Firebase Blaze is pay-as-you-go; eligible users may get $300 free credit. Per-product Firebase rates weren't checked.
What's new for agents?
At Supabase Select (2 Oct 2026) Supabase announced code-first schema/config, Docker-free local Supabase (alpha) and MCP servers for your app.