Write an iPhone application

hello freelancers i have buy a chat app need to customize previously i hired a freelancer when i create the milestone he is not replying me well i open dispute this will waste my time and money also so will send him/here template when i saw the progress will create milestone here is change I want Please see changes below Please let me know how long it will take and what's your cost. - [ ] name of app— SEAKRIT - [ ] Dont need Facebook login - [ ] must be able to sign up with phone number and email - [ ] user must be able to add more than one photo or video to profile - [ ] colour code to be change - [ ] app must be able to make phone call via 3g or wifi - [ ] app must have option to lock using passcode to access