Visit the Home screen page on which you want to stick the app icon, or launcher.
The best icons to place on the Home screen are those that show updates. Add apps, shortcuts & widgets to your Home screens Apps; Shortcuts to content inside apps; Widgets that show information without Add to Home screens.
Have your favorite apps and widgets available one finger tap away!
hold the app icon; A miniature version of your panels (including your home screen) shows .
If you have extra space on a screen, as it sounds like the OP had after arranging their apps into groups foldersall you need to do is to reboot your phone, and the app will reappear in one of the blank spaces on the screen.
I've tried this several times and it doesn't fix the problem iPhone 6, iOS 8. If anyone would like to test this, I have a known, reproducible bug in iOS 6 for throwing an icon "off-screen" that I can share.
The apps still appear in Spotlight so I know they're still there. Select your product from the menus below and we'll show you where your number is.
Video: Show apps on screen Apps missing from iPhone home screen
Choose Show Apps button to return it to your home screen.
Downloaded a couple of apps earlier and neither icon showed up on the screen. Looking under apps they are there. They are even available.
Choose Show Apps button to return it to your home screen. Click on any of these to restore the selected app's icon to your home screen.
iphone Restoring hidden apps to a home screen Ask Different
But I guess Pacifica reached less than apps, with just a few folders, which is already a lot.