Kotlin vs. Realm Comparison


Kotlin	Realm Realm DB	+	+
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About Easy to pick up, so you can create powerful applications immediately. Compatible with the Java ecosystem. Use your favorite JVM frameworks and libraries. Share application logic between web, mobile, and desktop platforms while keeping an experience native to users. Save time and get the benefit of unlimited access to features specific to these platforms. Kotlin has great support and many contributors in its fast-growing global community. Enjoy the benefits of a rich ecosystem with a wide range of community libraries. Help is never far away — consult extensive community resources or ask the Kotlin team directly. Kotlin Multiplatform Mobile is an SDK for iOS and Android app development. It offers all the combined benefits of creating cross-platform and native apps. Maintain a single codebase for networking, data storage, analytics, and the other logic of your Android and iOS apps.	About Realm is a mobile-first, open source object database designed to run directly inside phones, tablets, and wearables. It provides a simple, object-oriented data model that eliminates the need for an ORM, allowing developers to define models as regular classes in languages like Swift, Java, Kotlin, C#, JavaScript, Dart, and C++. Realm's architecture ensures high performance and low memory usage by employing a zero-copy design, lazy loading, and multi-version concurrency control (MVCC) for thread-safe operations. It's live objects and collections automatically update across threads, enabling reactive programming patterns. Realm supports relationships between objects via links and backlinks, facilitating complex data structures. Developers can utilize tools like Realm Studio to inspect and manipulate local Realm databases and integrate Realm into various platforms, including React Native, Flutter, Xamarin, and Node.js.
Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Supported iPhone Not Supported iPad Not Supported Android Supported Chromebook Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Programming Language that helps developers create apps	Audience Mobile developers interested in a tool to create offline-first applications with real-time data synchronization capabilities
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing Free Free Version Supported Free Trial Not Supported	Pricing Free Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Supported
Company Information Kotlin United States kotlinlang.org	Company Information Realm DB Founded: 2011 United States realm.github.io
Alternatives C++	Alternatives CloudKit Apple
Carbon Language Google	Core Data Apple
Dart Dart Language	Realm ACS Technologies
Koin Kotzilla	USAN Realm USAN
Codename One View All	Realm Accounting ACS Technologies View All
Categories Programming Languages Supported	Categories Offline-First Databases Supported

Integrations AskCodi Supported Claude Opus 4.6 Supported Cleanup.pictures Supported Dart Not Supported Falcon-40B Supported GLM-5.3 Supported GPT-5 Supported GPT-5.1 Instant Supported Gemini 2.0 Supported Gemini 3.1 Flash-Lite Supported Goose Supported Graphify Supported Haber Chat Supported Holo4 Supported JSON Formatter Supported Kontra Supported Open Code Review Supported Qwen2 Supported Rainforest Supported Zed Supported Show More Integrations View All 384 Integrations	Integrations AskCodi Not Supported Claude Opus 4.6 Not Supported Cleanup.pictures Not Supported Dart Supported Falcon-40B Not Supported GLM-5.3 Not Supported GPT-5 Not Supported GPT-5.1 Instant Not Supported Gemini 2.0 Not Supported Gemini 3.1 Flash-Lite Not Supported Goose Not Supported Graphify Not Supported Haber Chat Not Supported Holo4 Not Supported JSON Formatter Not Supported Kontra Not Supported Open Code Review Not Supported Qwen2 Not Supported Rainforest Not Supported Zed Not Supported Show More Integrations View All 11 Integrations
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