1. Take iPhone8 as an example, open the mobile desktop;

2. Open the App Store, as shown in the picture;

3. Click the search in the lower right corner, Search for the software you want to download in the search box, and then click the "Get" button;

4. Next, click "Use your current AppleID" in the pop-up box to log in;

5. Continue Come down and click "Settings" in the pop-up box to log in to your account

6. Next, you can see that the software has been downloaded and installed;