iOS Enterprise Distribution Over-The-Air deployment systems

Question

In our company we are using TestFlight for adhoc distribution and for testing teams where finer access control is required.

It requires users to register and add device first, before access to the application can be given (even if application is signed using Enterprise certificate and provisioning profile without device restrictions).

Is there any other distribution alternative which would allow deploying app signed with enterprise provisioning profile without need for registration and 'adding device' hassle?

It would be enough that link to the application is generated, which could be just send to our contractor;s employees so they can install app just by clicking on it.

Optionally, access restriction using password or access code is the only obstruction accepted.

Answer 1

use this diawi . its uploading app without any login required and user can be add password protected feature.

Answer 2

You can send the .ipa file to the testers (using Dropbox or BTSync for example). They can install it with iTunes (see : Install IPA with iTunes 11 )

Crashlitics is a good alternative to TestFlight too.