Here's how to and install app IPA on your running iPhone or iPad. No jailbreak is required this to work. 2, iPhone/iPad Without Jailbreak. Superwave Mp3 zippy.
Download iFile IPA On iOS 10 No Jailbreak Required
Works even if it's not jailbroken or do not have Cydia installed.
Here's make Sideload a great iPhone/iPad which lets us view system files even modify them.