[Forums] Only registered devices can install app?

Hi,

I was trying to distribute iOS modified OSNow through this app. I was able to install app to my phone that is registered in devices in my developers account, but another phone (not registered anywhere) can't install app after loading and progresscircle is completer I have an error - "'myappname' could not be installed in this time".
Should I register every device I[m going to send a link to or I have to configure something else?

Thank you.

Cheers,
Nick