Prevent a specific app from being updated on client side I want to prevent a specific app from being updated by Play Store and Package Installer, preferably by refusing updates. Whenever I want to update it, I am supposed to be required to revoke the prevention manually, or the app cannot be updated. It should be a system tweak or a change somewhere in /data.

Things I've thought:


Tweak somewhere so the system reports the app to be infinitely new
Make the app "invincible" and cannot be modified


It doesn't matter if the app can be removed by regular means. Any thoughts?
I just found that Titanium Backup has a "Detach from Play Store" option for apps (requires PRO version). After detaching, apps won't show up in Google Play and thus won't be updated unless you manually navigate to the page and tap "Update".