1. I downloaded the old ipa file through the app store. Install a PP assistant first. Connect your mobile phone to the computer!

Click the database in the itunes interface;

2. Find the previously downloaded ipa file in the database, as shown in the figure below, click the right mouse button and display it in the resource manager;

3. Find the downloaded ipa file, and right-click the mouse to choose to install it with PP assistant;

4.PP assistant starts and detects the connection of mobile phone! Start connecting the mobile phone;

5. After the test, click the Install to Mobile Phone button;

6. Install the application, as shown in the figure below, and wait for the installation to be completed.

Extended data:

Ipa file is essentially a zip compressed package (not a rar or 7z package), which contains three components. The app directory under the payload directory is the main program of the software; ITunesArtwork is essentially a png picture without suffix, which is used to display icons in iTunes. ITunesMetadata.plist records buyer information, selling price and other data.