DistroKid - Unlimited uploads to iTunes and more. Keep 80-100% of your royalties.

Songlio - Free musical guessing game: race friends to name that tune

TuneCore - Music distribution platform for artists to sell their content worldwide

SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.

LANDR - LANDR is online music software for creators: music mastering, digital music distribution, free sample packs, collaboration tools, music promotion, and more. Try it free.

Fretello Stage - Jam, record and share your music in the blink of an eye