TIDAL - Tidal is a streaming music service supported by some of the most influential artists working in the industry.
AppRecs - AppRecs sorts through reviews in the App Store and automatically helps you filter out inauthentic results.
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Zestia - Zestia is a mobile app designed to assist you in organizing your hectic schedule, social life, and professional persona.
Apple Music - Apple Music app combines your personal iTunes library with Apple's music subscription service. Music you have purchased from the iTunes store, or synced over from other sources, is available in the "Library" tab. Read more about Apple Music.
Cydia - An alternative app store for jailbroken devices.