What is the proper way to store sensitive data in react native app?

the most secure way to save sensitive data such as token or payment information .

should I store them in the android AsyncStorage, in the redux-store or shared preferences?

The libraries

Now multiples libraries allow you to store sensitive in React Native code:

• expo-secure-store
• react-native-keychain
• react-native-encrypted-storage

Note: On the native side, these libraries can use:

• Keychain for iOS
• Android Keystore for Android
• Encrypted Shared Preferences for Android