Get some informations about you Flutter app.

app_info.dart

import 'package:package_info/package_info.dart'; //https://pub.dev/packages/package_info

class AppInfo {
  Future<String> get version async {
    final PackageInfo packageInfo = await PackageInfo.fromPlatform();

    return packageInfo.version ?? 'Unknown Version'; // 1.2.7
  }

  Future<String> get buildNumber async {
    final PackageInfo packageInfo = await PackageInfo.fromPlatform();

    return packageInfo.buildNumber ?? 'Unknown Build Version'; // 1500
  }
}