Firestore vs RethinkDB
Firestore
cloud.google.com
RethinkDB
rethinkdb.comSide by side
| Figure | Firestore | RethinkDB |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 9 | 1 |
| Spec score · Document Databases | 9.0 (#2) | 8.3 (#8) |
| Integrations | The product page names Google AI Studio, remote MCP, LangChain, and LlamaIndex integrations for building generative AI applications. | Official documentation covers Elasticsearch, RabbitMQ, Rails, publish-subscribe systems, Node.js libraries and multiple ORMs. |
| Product | Firestore is a fully managed, serverless document database for building AI, web, and mobile applications. | RethinkDB is a distributed document database that stores JSON and pushes query results to applications in real time. |
| Rating on G2 | 4.2 out of 5 from 97 reviews. | 4.3 out of 5 from 15 reviews |
| Security | Firestore integrates with Cloud IAM, Cloud Identity Platform, and Firebase Authentication for identity-based access controls and data validation. | The documentation describes TLS encryption for server, client, and web UI connections, and recommends setting a password for the admin account, which has no password by default. |
Plans
Firestore
- Standard edition — document readsPrice not published
- Standard edition — document writesPrice not published
- Standard edition — document deletesPrice not published
- Standard edition — stored dataPrice not published
- Free quotaFree
- Free quotaFree
- Standard edition pay-as-you-go$0.03 a month
- Enterprise editionPrice not published
- Standard editionPrice not published
In their own words
Firestore
Firestore is a fully managed, serverless document database for building AI, web, and mobile applications. It stores flexible JSON data and supports vector search, full-text search, geospatial queries, and ACID transactions on JSON or BSON-compatible documents. Client SDKs for Android, iOS, and web provide real-time updates and automatic syncing for offline access. Firestore can replicate data across multiple regions with strong consistency; multi-region deployments have a stated 99.999% SLA-backed availability. Integrations named for generative AI application work include Google AI Studio, remote MCP, LangChain, and LlamaIndex. Identity controls connect with Cloud IAM, Cloud Identity Platform, and Firebase Authentication. Data is encrypted before it is written to disk, with customer-managed keys available through Cloud KMS. The free quota applies to one database per project and includes 1 GiB of storage, daily read, write, and delete allowances, and 10 GiB monthly outbound transfer. New customers receive $300 in credits, separate from that quota. Server client libraries bypass Firestore Security Rules, so server access needs IAM controls.