PocketGamer.fun 
U.GG 
Icy Veins 
Arcade Cloud 
EV.IO Puzzle Retreat Code #2
As promised, here's the code you're looking for: 6FHAAAKAY3M4
Please be kind enough to comment if you've redeemed the App - failing that I'm sure a kind soul will let us know it's gone!
Three more to go!