Well, it's actually a product of Skalfa LLC. but y'know, their still the same people that write the script. I remember it use to be $20 and all of a sudden when the store got it's recent update, it zoomed up to $99. With no changes. This is sad to as it is a plugin targeted for usage by many Oxwallers and Third-party developers. So, if you want to make a plugin that relies on the Credits plugin you'll (most likely) be stuck with paying a $99 fee to get the source code for it.