How do I restore a hidden app on my iphone (back to the home page)?

Go to the App Library (just past the last home page). Type the name of the app into the search bar. Tap and hold on the name of the App in the search results. Tap on "Add to Home Screen"

1. Touch and hold an empty area on your Home Screen.
2. Tap the dots near the bottom of your screen.
3. Tap the circle under the page that you want to unhide.

Organize the Home Screen and App Library on your iPhone

Glad it helped!