Mobile app for iPhone was written in XCode 4 (Apples SDK software development kit for iPhone and iPad). It was made for iPhone 4 and the App was tested and worked with the iPhone 4. It runs on iPhone 5 but it is not formatted for the iPhone 5 screen resolution. Because of this it does not pass iPhone 5 compatibility requirement for the Apple App store.
The App needs to be upgraded to the new format for iPhone 5 and driver for a iPhone card reader needs to be added to the App. The card reader manufacture has not finished the iPhone 5 driver yet. Once the driver is finished it needs to be added to the App. We have to contact the manufacture direct to get the driver.
This could lead into more work since after the launch another App needs to be written for the Android.
We only speak English so good English communication skills are essential