Total Trivia is a game where you answer questions from a variety of topics in order to gain first place to win prizes for 'free'. The prizes are top quality, usually packaged well and shipped within a reasonable amount of time.
It's only free if you maintain the patience to play daily challenges to win the discount tickets you need to play. You can also use in app purchases to buy tickets and may very well have to if you want to maintain that first place position to win that $14,000 Schultz Massage chair for free.
You do earn discounts off of the retail price every time you play, even if not in first place but it's too easy to keep charging your card for more tickets.
Beware if you're intensely competitive with a long line of credit.