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Update December 2021
new nice package, recommend this one
https://pub.dev/packages/new_version
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Actually, in June 2020, we have more possibilities with Flutter. Among them:
1. Make updates inside the app. Display two kinds of notifications if the app has the new version.
Plugin – https://pub.dev/packages/in_app_update
(works only on Android, iOS doesn’t support such functionality)
2. When a newer app version is available in the app store, a simple alert prompt widget or card is displayed.
Works Android & iOS.
Plugin – https://pub.dev/packages/upgrader
3. Use Firebase in-app messaging. It gives flexibility in the messages and forms of notifications.
- But a lot more boilerplate code and work.
- But you can use it for other messages and notifications when your app is growing.
https://firebase.google.com/docs/in-app-messaging
4. Make it by yourself. Maybe even less code then in the case with Firebase messaging.