When you locate the app in the i Tunes Store, you should see “install” or “Downloaded” instead of a price.
Apps are stuck loading on your i Phone, and it’s driving you crazy.
If your i Phone 6 won’t download Apps still, try restarting the device so the internet would reconnect.
Another Method of fixing the apps being stuck on “Waiting” is to change the Date & Time.
The length of time will depend on the number of apps you sync to the device. After the update, try and download the apps on i Tunes.
After the apps is finish download, you can sync it to the i Phone 7 or i Pad.