Fauna
PostgreSQL
| Feature | Fauna | PostgreSQL |
|---|---|---|
| Pricing | Free / from $0.01/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.1 / 5 | 4.8 / 5 |
| Best For | serverless-developers, jamstack-apps, globally-distributed-apps, startups | backend-developers, enterprises, data-intensive-apps, geospatial-applications |
| Founded | 2012 | 1996 |
| Acid Transactions | ✓ | ✗ |
| Document Relational | ✓ | ✗ |
| Graphql Native | ✓ | ✗ |
| Global Distribution | ✓ | ✗ |
| Event Streaming | ✓ | ✗ |
| Multi Tenancy | ✓ | ✗ |
| Temporality | ✓ | ✗ |
| Sql Queries | ✗ | ✓ |
| Json Support | ✗ | ✓ |
| Full Text Search | ✗ | ✓ |
| Extensions | ✗ | ✓ |
| Replication | ✗ | ✓ |
| Partitioning | ✗ | ✓ |
| Stored Procedures | ✗ | ✓ |
| Postgis | ✗ | ✓ |
✓ Fauna Pros
- Globally distributed with strong consistency
- Combines document and relational models
- Native GraphQL and FQL query support
- Serverless with no infrastructure to manage
✗ Fauna Cons
- Proprietary query language (FQL) has learning curve
- Can be expensive at high read/write volumes
- Smaller community compared to MongoDB or PostgreSQL
✓ PostgreSQL Pros
- Completely free and open source
- Extremely reliable with decades of development
- Advanced features like JSON, full-text search, and PostGIS
- Excellent standards compliance
- Massive ecosystem of extensions
✗ PostgreSQL Cons
- Requires more setup and management than cloud databases
- Horizontal scaling more complex than NoSQL alternatives
- Default configuration needs tuning for production
The Verdict
Fauna is built for serverless developers and jamstack apps, with a focus on acid-transactions and document-relational. PostgreSQL targets backend developers and enterprises and leads with sql-queries and json-support.
PostgreSQL uses custom enterprise pricing, while Fauna starts at $0.01/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
PostgreSQL edges out on user ratings (4.8 vs 4.1). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, PostgreSQL offers broader built-in capabilities (8 features vs 7), while Fauna takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: PostgreSQL has a slight overall edge — but if globally distributed with strong consistency matters most to you, Fauna may still be the right call.