When you support an artist on Nina you can be sure that they are receiving 100% of the sales costs. Collecting a Release on Nina is one of the most direct ways to support an artist by purchasing their music -. Nina does not take any fees from artists or collectors on a sale.
Artists on Nina may provide access to bonus materials exclusively to people who have collected their Releases - this could be Lossless versions of the publicly available file, bonus tracks, stems, videos, liner notes, etc. If a Release has any Gates on it you will be able to access those files after collecting the Release.