I completed the challenge to get to level 100, got my 33152 credits and ordered my latest 20 dollar payout.
I have been using this app for a couple months now. I have made 100 bucks playing games so far. I would stick to the "fantastic offers" because they are in a section of the app that tracks your completed tasks, and tasks that are still in progress.
Enter the code GJNGG3 to get Free Credit. Get it here http://cashapp.io/app