Awful!
Nothing to do that doesn’t require payment.
Not enough ratings yet to assess The 30 Day Burpee Challenge.
The 30 Day Burpee Challenge appears to be a legitimate app. AppsHunter Legitimacy Score for The 30 Day Burpee Challenge is 80/100.
Based on 80 of 100 points across 7 verification signals from App Store and developer data.