I currently do not allow commercial (such as pay-per-download music) use of my UTAUs without explicit permission, though to be honest, I never thought that people had the interest in using the Kikyuunes for such until this past month. Over the course of June, I’ve had 2 instances of people requesting commercial use permission, and ONE instance of commercial use (on a Bandcamp album) without initial granted permission.
I’ve now come to realize that more people than I initially expected may be inclined to use my UTAU commercially other than just friends and colleagues I’ve collaborated with already. In this case, I will be soon drafting a commercial-use license for those interested in using my Kikyuune voicebanks/characters.
I am not yet certain what this license will cost though I doubt it will be over $12. There will first be a digital option for purchase, followed by a physical boxed copy of Aiko that will come packaged with the license, much like the UTAU Namida’s boxed version.