saw this in another recent thread and i didn't want to hijack it. post games where you can level up your character and get unlocks and new powers. no freemium please... the only one i can think of is Battleheart and Zombieville 2
Just posted in that similar thread... And here's that post. Run n Gun is the only freemium in that list as TheEndApp is a one time iap to unlock all modes and upgradeables. It also isnt as grindy as the freemium runners as this game has tons of it.