Updating iphone apps
Everything with your i Phone seems all right, but you still cannot download apps from App Store or update the apps you’ve already downloaded.Generally, the main reason that causes App Store not downloading/updating apps is on Apple’s side, and that’s why it will be resolved automatically a couple of hours later.Tap the Apple ID and then choose Sign Out on the pop up options box. Then tap Sign In on the next screen that is displayed.
Sometimes, you may find your i Phone won’t download or update apps on App Store, even though you have plenty of storage space, have good network connection and have the latest i OS version (i OS 10.2.1) installed on your i Phone.Tried both the options but it didn't solve the problem.Had tried the first option and was holding back the seocond suggested option because I had to re-enter the wifi key's after reset.Through this way, you can clear all cache stored in your App Store.After doing this, your App Store will be forced to re-download the Apps. Free up Some Storage Space on Your i Phone/i Pad Not enough storage space can also lead to the failure of downloading or updating apps.
Go to Settings on your i Phone, tap General Now you can sign into App Store with the same Apple ID or with another Apple ID.