Document NoSQL versus relational Postgres — the schema decision shapes how you'll model data, query it, and evolve it for years.
Pick MongoDB Atlas when your data is genuinely document-shaped — nested, varying per record, evolving fast — and joins aren't core to the workload. Pick Supabase when relational integrity, SQL ergonomics, and row-level security matter, or when you want auth and storage bundled in the same platform.
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| Attribute | MongoDB Atlas | Supabase |
|---|---|---|
| Category | Database | Database |
| Pricing Model | freemium | freemium |
| Starting Price | Free / $57/mo | Free / $25/mo |
| Free Tier | Yes | Yes |
| Open Source | No | Yes |
| Platforms | aws, gcp, azure | web, postgres, edge |
Database
Supabase vs Neon vs PlanetScale