As far as I know (and I have quite a few apps on google play) the list is compiled from the apk itself. On android you need to specify all permissions in the manifest (a file in the app that describes what the app requires). If you don't and try to use it, the device rejects it. The play store description is a "human version" of the list. Some permissions are grouped and other ignored.
The app from the post had a list of permissions declared in the manifest, and on first look it seem to match what play store shows.
In any case: no, you can't leave out permissions and use them later. If you don't declare them, you can't use them. (At least not by normal means, it is possible with adb and root, and also by installing extra apps).
The app from the post had a list of permissions declared in the manifest, and on first look it seem to match what play store shows.
In any case: no, you can't leave out permissions and use them later. If you don't declare them, you can't use them. (At least not by normal means, it is possible with adb and root, and also by installing extra apps).