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spotify-downloader
Download your Spotify playlists and songs along with album art and metadata (from YouTube if a match is found).
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SpotiFlyer
Kotlin Multiplatform Music Downloader, Supports Spotify / Gaana / Youtube Music / Jio Saavn / SoundCloud.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
You would be better off downloading your songs using something like https://github.com/spotDL/spotify-downloader and importing it into your Music app.Apple does make good products but it's really locked down. Unfortunately you'll probably have to live with Ads on YouTube unless you setup something on your entire network which can block ads. But if you're using cellular data that isn't much on an option.