The project has used react-native , redux and expo.this projrct does not have ui.my goal was to use redux and expo sdk in the react-native.I wanted to showcase an extraordinary structure with the leadership of redux and hosting the react-native. The project consists of three GPS sensors,pedometer and a gyroscope. you can see live demo with this link (for see live demo you need install expo apk on your android device.)
and download android APK with this link