I know questions like this one have been asked over and over again but I couldn't find an answer that goes straight to the point.
I have seen guides that seems to allow you to distribute your app OTA without having to be part of the Enterprise program.
I also have seen some tricks where, if you don't have a SSL certificate in your hosting, you still can use dropbox to configure your "links". (Enterprise app deployment doesn't work on iOS 7.1)
In summary I have used dropbox as it was indicated in one of the answers I found before and it totally worked. The problem is that I tried to test it in a different device and it didn't work (typical message
Unable to Download App. xxxx could not be installed at this time.
I'm signing the app using a distribution certificate and I'm using a provisioning profile for distribution:
I know it can sound pretty obvious that all that is meant to work only for the AppStore or ad-hoc distribution (this last one requires to collect all devices UDID and it's not what i'm looking for).
I would like to know if it is definitely possible or not to distribute my apps "in-house" without having to be part of the Enterprise program. If true... what I'm doing wrong?