The shared_preferences plugin allows simple data (key-value pairs) to be asynchronously persisted locally and is currently available for Android, iOS, and Flutter for Web.
This is possible because shared_preferences wraps different technologies based on the system on which it's run. In iOS, it leverages NSUserDefaults; in Android, it leverages SharedPreferences, and in the browser, it leverages the window.localStorage object. Basically, you have a universal way to save data and don't have to worry about duplicating any code for the different devices on which your app will be running.
shared_preferences should not be used for critical data as data stored there is not encrypted, ...
