In all, Musi features an eclectic mix of highlighted music, from prominent rappers to The Beatles and Neil Diamond. Musi also gives users the option to search by genre, including Pop, R&B/Rap, Rock, Country, Indie, Electronic, K-Pop, and Reggaeton. Users create their Musi music library by searching for music from artists they enjoy or scanning and adding from listings of the most played songs on the app, trending songs, new music and featured playlists. The first thing Musi users want to do when they begin using the app is to start building their music library. Musi users should also be aware that streaming songs over a cellular connection will incur regular data charges, whereas streaming over WiFi will not affect data plans. When users first open Musi, they’re presented with a disclaimer messages letting them know that Musi does not save music or download songs to their device. Additionally, Musi does not feature a profanity filter. Musi users search for their favorite artists and tracks on the app, which is scanning and pulling the audio directly from YouTube, and then individually add them to create custom playlists. Musi stands apart from other music streaming apps, as the music it streams depends wholly on the user. Musi does however, offer in-app purchases and advertisements.

Rated for users ages 12 and older, the Musi app is available only for iOS devices and is free to download through the App Store. Musi is a free music streaming app that enables users to stream music from their favorite artists, pulling the music from YouTube.