Hay que darse de alta primero en
http://appgratis.com y luego te bajas el cerberus, por lo que ponen en el correo que te envían luego, es una promoción conjunta y solo valida para quien no tuviese ya instalado el cerberus
Hi,
The license for your "xxxxxxx" Cerberus account has been activated for free, thanks to a promotion in collaboration with AppGratis.
Every day AppGratis offers one free app (plus discounts up to 90% off), hand-picked and reviewed by their team to make sure of their high quality.
Check out their app for great deals, it's free:
http://bit.ly/13kIkk2
Please open Cerberus on your device and log in to access the app settings, you should not see the "Buy license" option anymore. This means that the lifetime license for your account is active.
Have a great day!
The Cerberus and AppGratis teams
