Im a Spotify Premium User with an iPhone 8 Plus. If you turn off Snapchat's use of the microphone then it works when using the app but this is quite annoying when using snapchat. Is there a more long term solution? Please help me!!!
I'm not sure how permanent this is, but.... Close both Snapchat and Spotify, turn the phone off for a minute and turn it back on. This has worked for me so far (iPhone 7+ running iOS 11.2 with Spotify premium).