Q: Camera360 is not been downloaded in my iPhone 6s

Hi rustam111,
 

Thank you for visiting Apple Support Communities.
 

You can try these steps from If an app you installed unexpectedly quits, stops responding, or won’t open if you can't download the Camera360 app from the App Store:
 

Restart your device

Turn your device off and back on.

Check for iOS and app updates

1. Make sure that you're using latest version of iOS.

Install another app from the App Store

Try installing a different app that you don't have on your device. Find a free app from the App Store, and remember to use the same Apple ID that you used to download the app that you're having issues with.

All the best.