Use Assistant/pp Why you can not escape free download paid application
Here we use the Apple helper as an example:
The "Fast Apple Helper" principle is to buy the app's installation files by Apple's process, and then put them on your server for users to download using the Quick Helper. After the download is applied to the PC, connect the iOS device via the data cable and simulate the communication specification of itunes to install the application in the device.
This makes all of the applications installed through the "quick use" corresponding to the application of the Apple ID is a "quick" unified ID, rather than the user on their own device, the common ID. This can lead to two obvious results.
Quick to use the Apple Helper/pp Assistant disadvantage:
cannot be upgraded. All apps that use the "quick use" installation cannot be upgraded via the App Store unless you get the official ID password for the Fast Apple Helper. In principle, if the application version is updated on the "quick use" server, you can uninstall the local original application and upgrade by using the "Quick Assistant" installation-Obviously, this is a bit of a hassle.
Installed applications may be deleted because of itunes synchronization. There is no absolute inevitability of this phenomenon, and it does appear in use. But this issue has nothing to do with "quick use," only to say that the PC version of the itunes user experience is not good. Another scenario is when iOS devices perform itunes synchronization and some of the apps that have been installed by "fast use" are not available, and there is a flash-back. Although the "quick use" has the function of flash-back repair, it does not always seem to work.