Clean up iPhone Parse application

I received an already build iphone application using parse server (heroku, ilab). The application is working but sometimes we experience some bugs. I need an iphone parse developer to check bugs and fix it. My sense is that this is no more than 3 days of work. The main issues I have are with connectivity: how to communicate to the user that there is no internet connection. Parse is also caching data: how to check for new data or updates. Main components of the app: parse api, login/logout, geolocation (search for places), setting favorites. Pretty much very straight forward.