With the modded Play Store, you can : Use protected apps with Google LVL (License Verification Library) without cracking them, verify license in offline mode, disable self update, and more.
You need a rooted device to install this. Please note that you can't download paid apps for free !
Note : If you receive the "Force close" message when you view "Installed" in "My app", please clear cache and data for Google Play Store.