Azure DocumentDB vs Firestore

Azure DocumentDB plans

• Free TierPriced on request
• M10Priced on request
• M20Priced on request
• M25Priced on request
• M30Priced on request
• M40Priced on request

Firestore plans

• Standard edition — document reads—
• Standard edition — document writes—
• Standard edition — document deletes—
• Standard edition — stored data—
• Free quotaFree
• Free quotaFree

Pick Azure DocumentDB if…

Azure DocumentDB suits teams building applications around BSON or JSON documents that need transactions or vector search. The Free Tier may be relevant for a cluster needing up to its listed 32 GB of storage.

Pick Firestore if…

Firestore suits developers building AI, web, or mobile applications who need a managed document database. It is also relevant to teams needing real-time client updates or offline syncing.