iOS/Swift VPN mobile app

Hi all, I need iphone and ipad iOS/Swift mobile app for [login to view URL] VPN services. The application should allow clients to use their [login to view URL] account on their mobile device and thus allowing them to use our VPN services and be anonymous and protected while they surf in internet from their mobile device. I already have working Android app [login to view URL] and all the screens and designs (PSD). The application must look like and do exactly the same as the android app and use iOS built-in L2TP/IPsec VPN functionality for the connection. The final application package should be able to be published in the appstore so that the users can download and use it right on. The application should be supported on iphone 5 and above and also on iPad. The candidates should be able to provide some portfolio of their previous work. It will be a plus if they already have experience in building VPN clients and apps or have some networking experience. More information and mock-up screens are available on request. The final package should contain full source code of the application as well as some help documents on how to build and install it from source. Thanks and happy bidding.