Hello, I'd like to introduce you to my first Android application called Free Steam Games. It tells you when the new giveaways are going on so you can easily enrich your steam library with new games. Please try it out and don't forget to rate it Hope you'd like it.
Google Play store link:
play.google.com/store/apps/details
P.S. currently you can get 1 game for free, so hurry up!