****Dear Client**** How are you? I am very interested in the position of mobile app development you recently posted. As a senior iOS/Android application developer, I have rich experience in mobile front-end and back-end development. I think your idea is very good and i can do it, Especially, I have a high skill in pixel perfect responsible UI/UX and Restful API integration. I can start this project immediately and I'd like to discuss more info about your project. I'd like to work on the project with you and hope we have a long term relationship. Best of Regards