I have 5+ years of experience in iOS and Android apps development. I have developed more than 50+ mobile apps. There are many different type of functionality uses in that app like Map, Core-Location, Core-Graphics, HealthKit, PassBook, IAP, Camera, Video-Audio, Multi Language Support, Web-services, Calendar, Social App Integration, Push Notification, Fabric (Crashlytics,Digit), Parse, Chat, SalesForce etc.