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Isar

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About

Isar is ranked #10 of 26 in mobile databases on Inferse. It runs on Android, iOS, Web. There is a free plan.

Compared on mobile databases

Free plan
Yesisar.dev
Offline mode
Yesisar.dev
Mobile platforms
iOS, Androidisar.dev
SDK languages
Dart, Flutterisar.dev

Facts

Product
Isar is a super-fast cross-platform NoSQL database for Flutter.isar.dev · 30 Sept 2026
Setup
Isar provides minimal setup with no configuration or boilerplate.isar.dev · 30 Sept 2026
Scalability
Isar can store hundreds of thousands of records in one NoSQL database and query them efficiently and asynchronously.isar.dev · 30 Sept 2026
Indexes
Isar supports composite and multi-entry indexes, query modifiers, and JSON support.isar.dev · 30 Sept 2026
Full-text search
Isar has built-in full-text search using a multi-entry index.isar.dev · 30 Sept 2026
Transactions
Isar is ACID compliant, handles transactions automatically, and rolls back changes when an error occurs.isar.dev · 30 Sept 2026
Static typing
Isar queries are statically typed and checked at compile time.isar.dev · 30 Sept 2026
Concurrency
Isar provides parallel query operations and multi-isolate support out of the box.isar.dev · 30 Sept 2026
License
Isar is open source, free forever, and Apache licensed.isar.dev · 30 Sept 2026
VM limit
On VM platforms, only the first 1024 bytes of a string can be used for a prefix where-clause and objects can be at most 16MB.isar.dev · 30 Sept 2026
Web limits
On Web, synchronous methods are unsupported, splitWords() and matches() filters are not implemented, and NaN is unsupported.isar.dev · 30 Sept 2026
App size
Isar adds about 1–1.5 MB to an app download, while Isar Web adds only a few KB.isar.dev · 30 Sept 2026
Support
The documentation asks users to open an issue or submit a pull request for documentation errors.isar.dev · 30 Sept 2026
Target users
Isar is designed for Flutter developers who need local data access when a network connection is unavailable.isar.dev · 30 Sept 2026

Best Isar alternatives

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7.4 Firebase Cloud Messaging Free free plan, no paid price published Free plan 7.4 Firestore Free free plan, no paid price published Free plan 7.3 Hive $5/mo first paid tier Free plan 7.3 RxDB $99/mo first paid tier Free plan 7.2 ObjectBox Free free plan, no paid price published Free plan 6.7 Couchbase Lite See plans price on the maker's page

Where it ranks on Inferse

Sources