Ad Hoc Distribution Devices - per app or per developer?

Apple says I can register up to 100 devices t开发者_高级运维o distribute an application. Is it 100 per app or 100 per developer?

This is per development account.

Apple allows you to register up to 100 device in your development portal as test devices. When distributing Ad Hoc apps, you use an Ad Hoc provisioning profile, which contains, among other things, a list of devices on which it can be installed. This list comes from your list of 100 devices. The devices themselves are not at all tied to a particular app, but rather to the development account.