Multiple android apps posting to the same Facebook app?

The title asks it all really - is it possible?

I can have multiple iOS apps targetting it (I just add multiple bundle IDs), but android doesn’t have the same deal with the package name - just one is possible.

On the other hand you *can* add multiple key hashes, but how would you leverage that into having multiple android apps (eg a full version and a free version of the same game) sharing a package name but not overwriting each other on the device?

IS what I want even possible, or am I going to have to open up a duplicate FB app purely because of this anomoly?

Barry