AppleEasing exports easing functions that are configured to match Core Animation's timing functions. They are generally tasteful and probably make sense to use on both iOS and Android.

This library is currently supported only on React Native.


npm install react-apple-easing


The easing functions can be used with any library that pass in the elapsed time and expect an eased value back. For example, with the Animated library you could write:

let AppleEasing = require('react-apple-easing');

new Animated.Value(0).timing({
  easing: AppleEasing.default,
  duration: 250,

These are the supported easing functions:

Core Animation constant AppleEasing function
kCAMediaTimingFunctionLinear None
kCAMediaTimingFunctionEaseIn easeIn
kCAMediaTimingFunctionEaseOut easeOut
kCAMediaTimingFunctionEaseInEaseOut easeInOut
kCAMediaTimingFunctionDefault default


This project is not affiliated with Apple, Inc.