I need an iPhone app. I would like it designed and built. Need an ap similar to wats ap where people can chat with their contacts, create groups, socialise and also be able to send pictures to each other. The user should be able to erase or rub off a part of the picture by using the screen. No other editing function needed. What's your cost? Is it possible to make the app for iPhone and android users? How much will monthly hosting cost? How many users can join? Please let me know if interested.