I have been engaged in the development of iphone approximately five years. I have excellent experience in developing iphone app in many forms, including the web service developed on the rest of the way. My basic skill is objective-c, swift, xamarin and WCF. Recent years I have a great attraction to jump smoothly into the swift excellence and has invested a lot of time to develop with the swift language. I think that is an important guarantee for a rich development experience to lead the project to success. Thank you for reading my article.