Challenger is an educational app developed in conjunction with Wireless Networking and Mobile Computing Laboratory (WineMocol) which is a joint research group of faculty members, graduate students, and visitors at Memorial University Computer Science and Electrical and Computer Engineering. The goal of this app is to promote healthier lifestyle for our members, community and everyone around the world. Challenger uses your HealthKit data to provide you with your daily achievements and to enable you to participate in many of the available challenges. You can even create your own challenges such as Steps, Distance, Calories, Sleep, etc. and let everyone or just your friends participate!