30 Day Fitness - 100 Sit Ups Publisher: Andrew Devine Genre: Health & Fitness Released: 2 Oct, 2020 Size: 8.5 MB Price: $0.99 Click here to request a review of this app App Store Info Description 30 Day Fitness - 100 Sit-Ups is a fitness challenge that challenges you to achieve 100 sit-ups without taking a break on day 30. Screenshots Screenshot 1 of 3