How do I reinstall a missing app icon?

The easiest way to recover a lost or deleted app icon/widget is to touch and hold an empty space on your Home screen. (The Home screen is the menu which pops up when you press the Home button.) This should cause a new menu to pop up with customizable options for your device. Tap Widgets and Apps to bring up a new menu.

Why are my apps not showing on home screen?

If you find the missing apps installed but still fail to show up on the home screen, you can uninstall the app and reinstall it. If necessary, you can also recover deleted app data on your Android phone.