Firestore
Firestore: A Firebase-centered document database with real-time sync, offline support, and a free plan. Ranked #7 of 28 in Document Databases by our editors (8.5/10); pricing: Free plan; best for mobile and real-time Firebase applications.
At a glance
- Editor score8.5 / 10
- PricingFree plan
- Best forMobile and real-time Firebase applications
- Free planYes
- Managed cloudYes
- Facts checked22 Sep 2026
Where it wins
- Real-time updates and offline persistence across mobile and web SDKs
- Transactions, batched writes, and integrated Security Rules
- Vector indexes with K-nearest-neighbor search
Where it doesn't
- The documented maximum document size is 1 MB
- Firebase-centric integrations narrow its broader ecosystem fit
- Usage-based pricing requires monitoring operations, storage, and network use
Our verdict on Firestore
Firestore is a managed, schemaless document database for mobile, web, and server applications. It stores JSON-like documents in collections, with support for nested maps, arrays, timestamps, binary data, geographic points, and vectors. Mobile and web teams can use real-time updates and offline data persistence through SDKs, while server applications can connect through Google Cloud client libraries, REST, or supported access modes. It is a strong fit for Firebase applications that need synchronized data and application-level access controls.
Its ecosystem is a central strength. Firestore integrates with Firebase Authentication and Firebase Security Rules, and it supports AngularFire, FirebaseUI, and React Native Firebase. REST API access and server client libraries broaden how applications connect, while Native, Datastore, and MongoDB-compatible access modes provide different entry points depending on the selected edition. These options make Firestore suitable for teams already building around Firebase, mobile SDKs, or web frameworks supported by the listed integrations.
The pricing model is freemium and usage-based rather than organized around fixed monthly plans. The published pricing structure includes a free quota, with charges beyond that quota based on operations, storage, and network usage. That approach can suit applications with variable demand, but teams need to track consumption as workloads grow. Firestore is less suitable for larger general-purpose workloads that require documents beyond the 1 MB maximum or a broader integration focus than the Firebase ecosystem provides. Choose it for mobile and real-time Firebase applications; consider an alternative when document size and ecosystem breadth are primary requirements.
Your product? Our editors can test Firestore in depth and publish a review, labelled as paid · from $149/mo →
Firestore pricing
All 4 Firestore plans and prices →
Firestore fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Deployment model | Cloud |
| Managed cloud | Yes |
| Document formats | JSON |
| Transactions | Yes |
| Vector search | Yes |
| Maximum document size | Not verified |
| Deployment | Cloud |
| Platforms | Web, iOS, Android |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 3 integrations: Firebase, Google Cloud, Cloud Run functions |
| Pricing | Free plan (source) |
| Website | cloud.google.com |
| Facts checked | 22 Sep 2026 |
Firestore integrations
Firestore lists 3 integrations on its own site.
- Firebase
- Google Cloud
- Cloud Run functions
Alternatives to Firestore
- MongoDB AtlasA managed MongoDB platform for production applications across cloud providers and regions.9.4
- Azure Cosmos DB for NoSQLA flexible Azure-native document database with global distribution and multiple throughput models.9.2
- Azure DocumentDBA feature-rich Azure document database with MongoDB compatibility and a free tier.9.0
See all Firestore alternatives →
Firestore vs the competition
- Firestore vs MongoDB Atlas
- Firestore vs Azure Cosmos DB for NoSQL
- Firestore vs Azure DocumentDB
- Firestore vs RavenDB
- Firestore vs Couchbase Capella
- Firestore vs Couchbase Server
Compare Firestore with any tool side by side →
Also Ranked In
Firestore is ranked in 7 of our directories.
Used Firestore? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Firestore for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Firestore is listed in our Document Databases directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/firestore/"><img src="https://www.itechguides.com/best/badge/firestore.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update