Some of the top mobile application TESTING scenarios include: 

• Install and launch the application before USING it.
• Ensure that the application is adaptable to the SCREEN of the mobile device and that all menus on the app are working.
• Inspect the readability and clarity of the text in the app.
• Check if the display of the application can be adjusted to various display modes (landscape/portrait).
• Be sure that the application does not interfere with other applications on the device.
• Ensure the back key on the play screen will take you back to the application's start-up screen.
• When the device is resumed from inactive mode or the lock screen, make sure the application still functions as intended.
• Applications should remind users to save any changes they make to settings before moving on to other activities.
• As soon as the user attempts to enter text, the on-screen keyboard should appear.
• Check that the application functions as intended when the "battery low" notification appears.
• Check how the application performs over the various internet network TYPES, such as 1G, 2G, 3G, and 4G.
• Applications should be adaptable to different mobile platforms or operating systems, including Android, iOS, Microsoft, etc.
• See how the application behaves at different levels of battery and temperature, and many more.