FIX MOBILE APP FOR IOS AND ANDROID in register, login and user profile

Need fix on Ios and android on register and signup and profile. Need developer with Native Java for Android, Swift for IOS and Laravel for backend panel with more than 6 Years experience. Need to fix the code by replacing new code and remove all old code from the existing app. Need to fix the register and login together with upload chef profile, entertainer profile and book room profile. Develop need to check all phone for css and code error on all mobile phone such as iphone all version, android samsung, oppo, huewei, redme, Xiaomi, vivo