30, 60, 90 Day challenge with accumulated countdown
If I have a 30 day squat challenge and I would like them to do 1000 squats a month, I would like the app to count down what's left of their challenge.
Example: I have a client doing a challenge and after the first day he did 50 squats. I would like the app to say "Good job you did 50 squats today! 950 squats left and 29 days to go!"