100 Days of Running is a fitness movement which started in 2015 to encourage people to make running a part of their lives, a habit, and a way towards better fitness. The 2021 edition starts on 24th july and will have more than 50,000 runners across India and indeed from across the world commit to run daily through 100 days of summer’s hottest months. This event is the largest such multi day challenge in the world. We integrate with the health app (HealthKit) to read and track your steps data and help you participate in steps related challenges being organized on HDOR platform.