Deezer, a music streaming service, is currently offering its Premium subscription for free for three months to new users. The promotion is available until the evening of October 6 and is only open to those who have never used Deezer before or taken advantage of a trial. Users must provide a credit card to register, but the subscription is non-binding and can be canceled up to 48 hours before the end of the free period. Deezer Premium gives access to over 120 million tracks in CD quality, with no ads and the ability to listen offline. The service includes FLAC audio files, which are high-fidelity formats, without extra cost, allowing users to enjoy high-quality sound on wired headphones or hi-fi systems. A feature called Flow provides personalized recommendations based on user preferences, and it excludes tracks that are entirely generated by artificial intelligence from its suggestions. A guided trial includes a seven-day reminder before the free period ends, helping users prepare for the transition to a paid subscription. Offline listening is available, which is useful for travel, although FLAC files use significant mobile data. Deezer is compatible with various devices and systems, including Android Auto and Apple CarPlay in cars, and it is available on Android TV, Chromecast, Apple Watch, Garmin, and Alexa and Google Home speakers. It also integrates with popular radio stations like RTL, NRJ, and France Info, as well as a feature called SongCatcher that helps identify songs heard by chance. A feature named Remix Lab allows users to remix certain tracks directly. The service is especially tailored for heavy music consumers, particularly those who enjoy French-speaking music scenes, which are well-represented in its catalog. Deezer also provides a transfer tool that allows users to import playlists from services like Spotify, Apple Music, TIDAL, YouTube Music, or Amazon Music with just a few clicks. A feature called Shaker lets users create playlists with others, even if those friends are subscribed to different platforms. However, Deezer has fewer podcasts compared to Spotify, and its web and desktop versions are less complete than the mobile app. In a comparison of the best music streaming services, Deezer ranks at the top due to its included FLAC format, its recommendation system, and its handling of AI-generated tracks. However, it stops at CD quality, while Apple Music offers lossless and Dolby Atmos spatial audio for 10.99 euros per month, and services like Qobuz or Tidal provide higher resolution up to 24 bits/192 kHz. Some tracks are not available in HiFi versions on Deezer.