I need an Android app. I would like it designed and built. We have dealers / field engineers attending to sales / site service calls from our office. We need field staff to fill in data of devices installed at site as new sales and service. The data should be downloadable in desktop with facility to convert into excel table format.
Dealer / user must be approved by app admin and should only be able to access and edit data submitted by him only. App should be very compact in size.