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Tech riderRev. 30 Sept 2026

Isar

Ch 137.2of 27 Mobile Databases
  1. 1Runs onAndroid, iOS, Web
  2. 2CostsFree plan
  3. 3Offline modeYes
  4. 4Mobile platformsiOS, Android
  5. 5SDK languagesDart, Flutter
5 lines stated Written from the maker's own pages: isar.dev
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The Isar homepage

Overview

Isar is ranked #13 of 27 in mobile databases on Specifiction. It runs on Android, iOS, Web. There is a free plan.

Isar plans and pricing

All plans
Open source Free free forever open source · Apache licensed isar.dev · 30 Sept 2026

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

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Where it ranks on Specifiction

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Sources