If you prefer to use iOS devices, like iPhone, iPod, iPad, Apple Watch and Mac computer. You can switch to Apple Music from Spotify. Because Apple Music is the default app on the iOS devices. Apple Music is more stable than Spotify on your iOS devices. There are many free site tool for you to trasfer Spotify to Apple Music, like soundiiz. You can try Macsome Spotify Downloader. It enables to download Spotify music to MP3 on your computer so that you are able to import Spotify songs to Apple Music or iTunes at will.