Overview:

MMKV is an efficient mobile key-value storage framework developed by WeChat. react-native-mmkv is a library that enables the use of MMKV in React Native applications with fast and direct bindings to the native C++ library accessible through a simple JS API.

Features:

• Get and set strings, booleans, and numbers
• Fully synchronous calls, no async/await, no Promises, no Bridge
• Encryption support (secure storage)
• Multiple instances support (separate user-data with global data)
• Customize storage location
• High performance due to C++ implementation (~30x faster than AsyncStorage)
• Uses JSI instead of the “old” Bridge
• Supports iOS, Android, and Web
• Easy to use React Hooks API

Installation:

1. React Native Expo

$ npm install react-native-mmkv

Summary:

MMKV provides a high-performance mobile key-value storage solution with encryption support, multiple instance support, and easy-to-use React Hooks API. react-native-mmkv library facilitates seamless integration of MMKV into React Native applications, offering fast and direct bindings to the native C++ library for efficient data storage and retrieval.