After opening iMazing, connect your iPhone and select Trust on your iPhone and enter the passcode.
Then you drag down select Apps – then choose Manage Apps.
After selecting Manage Apps – select the tab Thư viện As shown above, here are all the apps on your iPhone, whichever app you want to download, right click on it and then click install.
Then choose to install the .IPA file – then right-click again and select Export .IPA File
It is done! You can open that app normally on the Mac, my previous example with Instagram, of course there are many other apps that you can do the same, but the app window cannot be resized.