Enter the wechat APP of your iPhone, find the mini program, and click to open it.
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2. Find the program you want to add to your desktop in the mini program and click Open.
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3. Once inside, click the icon in the upper right corner of the program.
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4. In the dialog box that is displayed, click Add to Desktop.
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5. After completion, return to the iPhone desktop, and you can see that the program to be added is already on the mobile desktop.
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6. There is another way, you can search for the shortcut command of iPhone in wechat public account, find the instruction to add the mini program, copy it and create a shortcut, you can add the mini program of iPhone to the desktop.