Develop a Social Media Scheduled Uploader APP for IPhone & Ipad

I am after an App Developer who will co-design and develop an app for iphone and ipad which will house a users social media posts (text, photos, videos, links) and are scheduled by the user to be realised at the assigned time to social media steams (Facebook, Twitter, Instagram, Pinterest, Google Chrome, Tumblr). The designer must not only have an eye for design and style, but the app must also be able to monitor and track the analytics of the posts sent out. You must have a great communication and be able to produce this in two weeks or less - if you are interested but need longer, message me letting me know why. 25% Payment Upfont, 25% on approval of Design, 50% upon completion.