Spotify Is Better Than SoundCloud
Stop Using SoundCloud. It's simple.
1) The Fans on SoundCloud are typically broke and not loyal to the artist
2) It's cheaper to make money on Spotify
3) You're spending all your marketing time and money to promote your SoundCloud today. But, eventually, you will be on Spotify. Why wait?
If you're blowing up, then sure. Keep using it. But for the vast majority of people, please release your first song on Spotify.