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MongoDB Atlas vs PlanetScale
Comparing two database platforms on pricing, features, free tier, and trade-offs.
Quick summary
MongoDB Atlas — Multi-cloud developer data platform. MongoDB Atlas is the managed cloud service for MongoDB with global clusters, search, and vector capabilities.
PlanetScale — The MySQL-compatible serverless database. PlanetScale is a MySQL-compatible serverless database built on Vitess with branching and non-blocking schema changes.
Feature comparison
| Feature | MongoDB Atlas | PlanetScale |
|---|---|---|
| Pricing model | Freemium | Paid |
| Starting price | $9/mo | $39/mo |
| Free tier | Yes | No |
| Open source | No | No |
| Engine | MongoDB (NoSQL) | MySQL (Vitess) |
| Branching | No | Yes |
| Free Tier | M0 cluster 512MB | Discontinued |
| Serverless | Yes | Yes |
| Scale-to-zero | No | No |
| Point-in-time Recovery | Yes | Yes |
MongoDB Atlas
Multi-cloud developer data platform
Pros
- Flexible document model
- Mature ecosystem
- Atlas Search and Vector Search built-in
Cons
- Can get expensive fast
- Eventual consistency caveats
PlanetScale
The MySQL-compatible serverless database
Pros
- Horizontal scaling via Vitess
- Schema branching workflow
- Non-blocking migrations
Cons
- No free tier
- No foreign key constraints by default
- MySQL only
Which should you choose?
Choose MongoDB Atlas if a free tier is important for your stage. Choose PlanetScale if you need production-grade features and are ready to pay.
Frequently asked questions
Which is better, MongoDB Atlas or PlanetScale?
There is no universal “better.” For most teams, MongoDB Atlas is the safer default because MongoDB Atlas offers a free tier (paid plans from $9/mo), while PlanetScale requires a paid plan. For edge cases, the comparison table above highlights where each tool wins.
Is MongoDB Atlas cheaper than PlanetScale?
MongoDB Atlas starts at $9/mo, while PlanetScale starts at $39/mo. Exact costs depend on usage — check both vendors' calculators before committing.
Can I migrate from MongoDB Atlas to PlanetScale?
Migration difficulty depends on how deeply MongoDB Atlas-specific features (APIs, SDK conventions, data schemas) are baked into your app. Most database migrations take days to weeks. Both vendors typically publish migration guides — check their docs.
Is MongoDB Atlas or PlanetScale open source?
No — both MongoDB Atlas and PlanetScale are proprietary managed services. If open source is a requirement, see our alternatives pages.
Does MongoDB Atlas or PlanetScale have a free tier?
MongoDB Atlas has a free tier; PlanetScale does not.
Which is best for startups and indie hackers?
Startups usually optimize for the lowest friction to ship and the cheapest possible free tier. The one with the most generous free tier here is MongoDB Atlas. For production workloads, revisit the trade-offs in the feature table above.