Quick Comparison
| Supabase | Appwrite | |
|---|---|---|
| Database | PostgreSQL | MariaDB |
| Auth | Built-in (many providers) | Built-in (many providers) |
| Storage | S3-compatible | Built-in |
| Realtime | PostgreSQL changes | WebSockets |
| Self-host | Docker | Docker |
| Edge functions | Deno | Node.js/Bun |
When to Use Supabase
- You want PostgreSQL (SQL, joins, RLS)
- You need row-level security
- You want a managed cloud option
- You’re building with the JS/TS ecosystem
When to Use Appwrite
- You want full self-hosting control
- You prefer a REST API over SQL
- You need built-in functions runtime
- You want a simpler permission model
Verdict
Supabase for PostgreSQL power and managed hosting. Appwrite for full self-hosting control. Supabase has more momentum in 2026.