I can't see apps on my iPhone but I know they are somewhere in iPhone?

I can't see apps on my iPhone but I know they are somewhere in iPhone?

Long press where you want it to be. It will take you to your list of apps.

From your home screen, swipe left to right and you should be in the search window. Search for the app and see if it appears. If it doesn't, then go to the App store, tap on "Updates" and then "Purchased". You may need to enter your Apple ID and password, but all of your downloaded apps are there and available to download again if needed.