Firestore
8.8#2 in database software$0.03 usage-basedFree planAndroidiOSWebAPI
VisitFirestore vs Realm
What both publish
| Fact | Firestore | Realm |
|---|---|---|
| Data model | Firestore is a flexible, scalable JSON database for mobile, web, and server development. | Realm exposes data as objects that can be queried in code without an ORM. |
| Integrations | The product page names Google AI Studio, remote MCP, LangChain, and LlamaIndex integrations for building generative AI applications. | Realm's former Device Sync connected data across users, devices, and a backend in real time. |
| Product | Firestore is a fully managed, serverless document database for building AI, web, and mobile applications. | Realm is an object database designed to run directly on phones, tablets, and wearables. |
Firestore plans
- Standard edition — document reads—
- Standard edition — document writes—
- Standard edition — document deletes—
- Standard edition — stored data—
- Free quotaFree
- Standard edition pay-as-you-go$0.03 a month
Realm plans
- Realm Database (open source)Free
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.
Pick Realm if…
Realm is for developers building mobile or edge applications that need local object-based data persistence. Its SDKs and platform support cover several programming languages and environments.