I think these are some of the iPhone apps every Indians should install Banking apps SBI, HDFC , icici, axis bank all have iOS apps Messenger apps Facebook messenger , whatsapp, wechat are must have Facebook is used by many Whatsapp is cross platform SMS app Wechat is more than whatsapp. It has support for voice and video Between iOS you have FaceTime for video and iMessage for messaging Cross platform performance i.e.,between iPhone and android is poor for Skype Expense manager Toshl Google maps for navigation All your favorite newspapers and magazines have app editions Cinemax, PVR app to book movies YouTube app to watch videos You could also test apps that convert. Images to text Apps that help you to blog eg. Blogger Apps that help you to tweet/fb