MYB – The 10K Steps Group Challenge is a fitness app where users can create regular groups with different daily challenges. And each user has to complete it by the end of the day. The app has part of gamification to make the user experience fun and motivative. Also, the app has real fitness experts who manage mentor groups. All data are synchronized with HealthKit and can work with different fitness bracelets. The system of achievements and global leader board motivate users to complete their tasks.