punch clock

I want someone to design an ipad app, so that we can track all the hours of our 100 plant employees. employees will be tracked by 4 lead hands with ipads. We want the the Employees names, the job numbers, names and tasks to be stored on a database on a desktop computer the lead hands need to be able to punch in and out emplyees, pick from a list of job numbers and tasks. on breaks and lunch, tracking needs to be paused, and restart. We need to be able to punch in employees individually or in groups. it needs to be fairly simple to edit the data after the fact. the data collected needs to be save on a desktop computer. via wifi. we need to be able to export a csv report .