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What is WatermelonDB?

WatermelonDB is an advanced reactive database framework specifically designed for creating powerful React and React Native applications that can scale efficiently from hundreds to tens of thousands of records while ensuring rapid performance. It ensures that applications launch instantly, regardless of the data volume, employs lazy loading to retrieve data only as needed, and includes offline-first features alongside synchronization capabilities with custom backend systems. This framework is inherently multiplatform, being particularly optimized for React, which simplifies data integration into components, and it is also framework-agnostic, allowing developers to leverage its JavaScript API across various UI frameworks. Built upon a robust SQLite foundation, WatermelonDB provides static typing support through Flow or TypeScript, while also offering optional reactivity via an RxJS API. It adeptly addresses performance issues in complex applications by deferring data loading until it is explicitly requested and executing all queries directly on SQLite within a dedicated native thread, ensuring that most queries are resolved in near real-time. Moreover, this innovative framework not only simplifies data management but also serves as a flexible solution for developers aiming to boost the overall performance and responsiveness of their applications, ultimately enhancing the user experience.

What is Realm?

Realm is a cutting-edge, mobile-focused open-source object database designed to function flawlessly on smartphones, tablets, and wearable technology. By utilizing a simple, object-oriented data structure, it removes the need for an Object-Relational Mapping (ORM) layer, thus allowing developers to build models with standard classes in widely used programming languages such as Swift, Java, Kotlin, C#, JavaScript, Dart, and C++. Its architecture is optimized for high performance and low memory usage through methods like zero-copy design, lazy loading, and multi-version concurrency control (MVCC), which guarantees safe operations across multiple threads. Furthermore, Realm's live objects and collections automatically synchronize between threads, laying the groundwork for reactive programming practices. It also supports the creation of complex data structures by permitting relationships between objects via links and backlinks. In addition, developers can utilize tools like Realm Studio to explore and adjust local Realm databases, which enhances integration with various platforms, including React Native, Flutter, Xamarin, and Node.js. This flexibility and efficiency make Realm an attractive option for developers aiming to manage data effectively in their mobile applications, ultimately fostering a more seamless app development experience. As a result, Realm stands out in the realm of mobile database solutions.

Media

Media

Integrations Supported

JavaScript
Node.js
React Native
C#
C++
Dart
Flow
Java
Kotlin
Objective-C
React
SQLite
Swift
TypeScript
Xamarin

Integrations Supported

JavaScript
Node.js
React Native
C#
C++
Dart
Flow
Java
Kotlin
Objective-C
React
SQLite
Swift
TypeScript
Xamarin

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

WatermelonDB

Date Founded

2017

Company Location

United States

Company Website

watermelondb.dev/docs

Company Facts

Organization Name

Realm DB

Date Founded

2011

Company Location

United States

Company Website

realm.github.io

Categories and Features

Categories and Features

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