Some apps may not be optimized for the size of the Infinity Display and may not completely fill the screen. Many apps can be resized to take full advantage of the expanded aspect ratio. There are a couple of options to change the apps to full screen. One is to change the scale while running the app and the other is to change Enable full screen settings for other apps.
If you need any further assistance with this question, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email us at [email protected] We are open 24 hours a day, Monday-Friday and we will further assist in troubleshooting.