Objective C App to be modified (Webservices exp. required, PHP, MYSQL)

I have a native ios app written in Objective C that uses the Instagram API's. I need a developer to modify the code. If you have previous experience with the Instagram API's please indicate this in your message. If you have an example of an App you've built, please provide the Download URL. Our budget is 20 hours of work to complete this task, so bid your Hourly Rate by 20 Hours. Since this is an hourly project, the specifics of the project will be given to the Freelancer we hope to work with. You also should have a completion rate of 90% or better and perfect Feedback. The basic outline of the project is the following: 1. Update the user creation api call, need to modify the PHP files on our server. 2. Change the API calls we make to Instagram 3. Save some data from the API response. 4. Change app icon 5. Add Flurry Analytics 6. Test some existing code to verify it's working 7. Provide an IPA for testing 8. Submit to iTunes Connect. A more specific list of the work will be given to the Freelancer we want to work with. **** Verify IAP Purchase **** 1. Need someone who is familiar with verifying purchases using Apples Receipt Validation. We have jailbroken devices making purchases. If you have previous experience with stopping jailbroken devices from making unauthorized purchases please indicate that in your message. The project should be completed within 7-10 days.. That includes testing, and Submitting to iTunes Connect. **** Milestones **** There will be 2 milestones made, 10 hour Milestone and the final 10 hour milestone. If you complete the project faster than the 20 hours it won't matter. We will pay for the total of 20 hours of your time. 1. The first Milestone will be given once a working bug free IPA has been tested on iPhone 5. 2. The Second and final Milestone will be given after the App has been submitted to Apple for Review and the Source Code returned to us.