iPhone 13 does not show full screen

Hi MaryFletcher,

Not all games will be capable of going full screen, you'll want to reach out to the app developer to confirm if it does and to troubleshoot with-in the app.

Check out how to reach out to the developer here: How to contact an app developer - Apple Support

Have a good one!

Hi MaryFletcher,

Thank you for using the Apple Support Communities! You mentioned this was specifically occurring in a game app. Let's try the following steps that may help:

If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open

1. Close and reopen the app

Force the app to close. Then open the app to see if it works as expected.

2.  Restart your device

Restart your iPhone or restart your iPad. Then open the app to see if it works as expected.

3. Check for updates

To see if updates are available for the app, open the App Store, tap your profile icon, then scroll down to see if updates are available. If updates aren't available for the app, update the software on your iPhone or iPad.

4. Delete the app, then redownload it

Delete the app. When you do this, you might lose data that was stored in the app. Then redownload the app. Then check to see if the problem with the app is fixed.

Hope this helps!

Have a great day.

Hello ~ Is this just happening with specific apps? If so use the link that one of our Community Specialist *Trish313* pointed out by clicking qon it and reaching out to that App developer. One other question does the app need to be updated? You can click on this link for some helpful information…

How to manually update apps on your Apple device - Apple Support

Also I find that a forced restart may also help…

Force restart iPhone - Apple Support

Hope some of this helps. Post back and let me know.

~Katana-San~

Hello ~ Is there any way you can post a screenshot with no personal identifying information so we can get an idea of what you are seeing?

~Katana-San~

Hello again ~ Contact that App developer and good luck.

~Katana-San~

This appeared to be a case where an older game needs to be updated for newer devices.

I recommend to ➢ contact the App Developer here. ◁