SQLite is a self-contained, serverless, zero-configuration, transactional SQL database engine.
Best Realm Kotlin Alternatives ranked by AI · updated Aug 2026
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Realm Kotlin is an object database SDK for Kotlin Multiplatform and Android applications. It stores Kotlin objects directly and can optionally synchronize data with MongoDB Atlas through its device SDK capabilities.
Top 6 Realm Kotlin alternatives
ObjectBox is a high-performance NoSQL database for mobile and IoT devices.
Free to start, with pricing plans based on usage
DBFlow is an open-source Android ORM and SQLite database library for developers who want type-safe models, queries, and migrations. It uses annotations...
Pros
- Provides more ORM-style modeling than Android's lower-level SQLite APIs
- Generates much of the model and query boilerplate at build time
- Supports SQLite transactions, migrations, relationships, and custom queries
Cons
- Maintenance and Android compatibility are less predictable than Room's
- Annotation-processing setup can increase build complexity
- Smaller ecosystem and community than Room, Realm, or SQLDelight
4
GreenDAO is an open-source Android ORM making complex database operations simple again. No SQL to write, no queries to write, and no...
Pros
- Efficient database operations
- Automatic schema updates
Cons
- Requires boilerplate code
5
Google
Room
Room is Google's persistence library for Android applications that provides an abstraction over SQLite. It targets Android developers who want compile-time SQL...
Pros
- Stronger official Android tooling and maintenance than DBFlow
- Compile-time validation of SQL queries and schema changes
- Integrates directly with Kotlin, Coroutines, Flow, and Jetpack
Cons
- Requires more explicit SQL and DAO code than a full ORM
- Android-only and still exposes SQLite's relational constraints
- Migration handling can be verbose for frequently changing schemas
6
SQLDelight
Cash App
SQLDelight is a Kotlin database framework that generates typesafe APIs from SQL files. It is aimed at Android and multiplatform developers who...
Pros
- Offers stronger SQL control and verification than DBFlow's ORM abstractions
- Generates typesafe Kotlin APIs from real SQL statements
- Supports Android, JVM, and Kotlin Multiplatform targets
Cons
- Requires more SQL knowledge than DBFlow's model-first approach
- Less automatic relationship and CRUD behavior than a traditional ORM
- Generated-code setup adds Gradle and build configuration
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