Hello everyone. The cheapest and most convenient way to upload tracks to BOOM is through Freshtunes or ONErpm. Publishing a track is free. They take only a percentage of your income, but not more than 20%
There is a cheaper and more efficient way to upload your album to iTunes, Spotify, Google Music and Deezer: the MULTIZA service
It is the largest music distributor https://www.multiza.com
Distrokid exists to post an album to iTunes, Spotify, Google Music and Deezer. There you buy a subscription for 2000 rubles a year and upload as much music as you like, making all the profits.