MongoDB Atlas
Managed document database with a free shared tier
Free M0, then paid
Strengths
- M0 is a real free cluster for prototypes
- Dedicated tiers cover production
Limits
- A real bill splits compute, storage, and backup
- Document modeling is a poor fit for relational workloads
Vendor pricing
Alternatives
PlanetScale
Managed Postgres and Vitess clusters sized by SKU
Paid clusters
Strengths
- Cluster price is a monthly SKU, easier to budget
- Schema changes can ship through branching
Limits
- There is no permanent free cluster
- You pick a size instead of paying only for idle time
Vendor pricing
Alternatives