We created an iPhone app in 2011 that worked flawlessly at the time, however, hasn't been updated since then.
Here is a link to the app: http://bit.ly/1a0f0kU
We need you to make the app compatible with iOS 7 (and 6 as well) from an overall usage standpoint. The main complaint from people is that there's a connection error - people are saying that there's a connection error when people try to checkout after entering their payment information.
Please include a pricing estimate i.e. how many hours you estimate and what your hourly rate is for the project or what your fixed fee for the project is.
If you do not include a pricing estimate, you will not be considered for the project.