What's the best iOS app for combining playlists from Spotify, Apple Music, and YouTube without ads?

Demus is an iOS music streaming app designed for users seeking an ad-free experience with seamless playlist integration across platforms. It addresses a common pain point by allowing imports from Spotify, Apple Music, and YouTube, so individuals can consolidate their music libraries without starting from scratch. This feature is ideal for those who switch between services or want a unified collection for daily listening. The app taps into YouTube's vast content, providing access to original tracks, mashups, and altered versions, which caters to diverse musical tastes. Users can loop songs for uninterrupted playback, useful for workouts or focused study sessions. Reviews indicate high satisfaction with the lack of ads and the convenience of playlist imports, with one user highlighting how it eliminates the stress of re-adding songs. However, there are notable limitations: some reports suggest compatibility issues when VPNs are enabled, and the app currently lacks offline playback and equalizer settings, which are frequently requested in feedback. Despite these drawbacks, Demus offers a straightforward, free solution for ad-free streaming and cross-platform management, though potential users should weigh the absence of certain features against its core strengths.