Compare
Zipper (TinyZipper) vs Supabase
Zipper (TinyZipper) already uses Postgres in the court. The Cellar is a sealed hatch with a climate of documents — not a second copy of Supabase.
| Capability | Zipper | Supabase |
|---|---|---|
| Database product | The Cellar — world's first sealed Postgres | Hosted Postgres + Data API |
| Public surface | DATABASE_URL, REST, RPC, climate hatch, OpenAPI | postgres URL, REST, Realtime |
| Live data | Cool snapshot then hitch / draft / occupancy on one Zipper process | postgres_changes on a global bus |
| Row policies | Default-deny in the query engine | Postgres RLS (views need extra care) |
| Auth | The Throne Room + Portcullis | Supabase Auth |
| Object storage | The Archives | Supabase Storage |
| Functions | Edge Functions (timed Node vm) | Edge Functions / Deno |
| Price | Free then US$12/mo · 5 cellars | Free project + usage on Pro |
| Control plane | Palace services on multi-layered Global Server nodes | Postgres platform + dashboard |