There number Amazon, Google Play gift cards paid apps but good.
FFREEMYAPPS
1. Vis link mobile device http://trdd.us/freeapp ( t 200 extra Credits)
2. Tap sponsored applications .
3. Install any apps 30 seconds credits.
4. credits do get paid apps totally free!
works because developers pay their free app featured sponsored section, which enables cards.
BTW works fine a spam! So who keep saying spam. My recommendation may agree agree.
T who would like a paid apps 't want money. Well, unless prefer a cracked apps.