Swipe down on the Home Screen and use Search to find the app
If the app is in the App Library, press and hold the app icon
Tap Add to Home Screen
If the app is hidden from the Home Screen, go to the App Library and locate it
If the app is hidden from a Home Screen page, touch and hold an empty area on the Home Screen
Tap the page dots at the bottom
Make sure the hidden page is checked
Tap Done
If the app is restricted, go to Settings
Tap Screen Time
Tap Content & Privacy Restrictions
Tap Allowed Apps or Content Restrictions
Turn the app on or adjust the restriction
If the app is offloaded, go to Settings
Tap App Store
Turn on Offload Unused Apps if needed, or reinstall the app from the App Store
If the app is hidden in App Store purchases, open the App Store
Tap your profile icon
Tap Hidden Purchases
Re-download the app
If the app is inside a folder, open the folder and move it back to the Home Screen
Restart the iPhone if the app still does not appear