Realm

Realm

Realm DB
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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.

About

​WatermelonDB is a reactive database framework designed to build powerful React and React Native apps that scale from hundreds to tens of thousands of records while remaining fast. It ensures instant app launch regardless of data volume, supports lazy loading to load data only when needed, and offers offline-first capabilities with synchronization to your own backend. It is multiplatform. Optimized for React, it allows easy integration of data into components and is framework-agnostic, enabling the use of its JavaScript API with other UI frameworks. Built on a robust SQLite foundation, WatermelonDB provides static typing with Flow or TypeScript and optional reactivity through an RxJS API. WatermelonDB addresses performance issues in complex applications by loading nothing until requested and performing all querying directly on SQLite on a separate native thread, ensuring most queries resolve instantly.

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

Platforms Supported

Windows Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Mobile developers interested in a tool to create offline-first applications with real-time data synchronization capabilities

Audience

Developers interested in a tool to build powerful React and React Native applications

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and 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 Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Realm DB
Founded: 2011
United States
realm.github.io

Company Information

WatermelonDB
Founded: 2017
United States
watermelondb.dev/docs

Alternatives

CloudKit

CloudKit

Apple

Alternatives

Core Data

Core Data

Apple
Realm

Realm

Realm DB
Realm

Realm

ACS Technologies
Realm Accounting

Realm Accounting

ACS Technologies

Categories

Categories

Integrations

JavaScript Supported
Node.js Supported
React Native Supported
C# Supported
C++ Supported
Dart Supported
Flow Not Supported
Java Supported
Kotlin Supported
Objective-C Supported
React Not Supported
SQLite Not Supported
Swift Supported
TypeScript Not Supported
Xamarin Supported

Integrations

JavaScript Supported
Node.js Supported
React Native Supported
C# Not Supported
C++ Not Supported
Dart Not Supported
Flow Supported
Java Not Supported
Kotlin Not Supported
Objective-C Not Supported
React Supported
SQLite Supported
Swift Not Supported
TypeScript Supported
Xamarin Not Supported
Claim Realm and update features and information
Claim Realm and update features and information
Claim WatermelonDB and update features and information
Claim WatermelonDB and update features and information