Both give you the full 8-week program. Only one makes you eligible to win cash back — here's the difference.
Everything in the challenge, plus your $100 deposit back in cash (and a share of the pool) when you finish. Requires connecting a fitness watch or heart-rate monitor and submitting body fat % photos along the way.
The full 8-week program, coaching, and meal plan — just type in your own numbers, no device needed. Without a connected device your $100 deposit goes toward 1-on-1 coaching instead of cash back — but this isn't locked in. Connect a device anytime before the challenge ends and you're back in the running for cash.
No fitness watch or heart-rate monitor? Pick "Take the Challenge": connect a device before the challenge ends and you become eligible for cash back.