I think I would go trough the App Store, and just use som kind of authentication, as that would be easier for some clients, and would provide better visibility

I think I would go trough the App Store, and just use som kind of authentication, as that would be easier for some clients, and would provide better visibility of the app and the company. However, if you would rather sidestep the regular appstore, Apple provides something called the Volume Purchasing program. With that, it is possible to provide apps directly to devices, either for free or a paid solution. source: http://www.apple.com/business/vpp/ http://www.apple.com/business/vpp/