Amazing Slow Downer vs Vivid Practice

Amazing Slow Downer slows music without changing its pitch, helping musicians study songs and techniques through repeated listening. On Windows and Mac, playback speed can range from 20% to 200%, and pitch can be shifted by semitones or cents. The Windows version handles MP3, Wave, Windows Media Audio, Ogg, FLAC, and AAC/M4A files in real time. On iOS and Android, speed ranges from 25% to 200%; those versions also support seamless loops during playback and changes to tuning or musical key. Computer versions can be controlled with USB HID devices and MIDI controllers, while the iOS page also describes Bluetooth/MIDI remote control. Mac and Windows versions do not support Spotify or Apple Music playback, and DRM-protected iTunes M4P files are unsupported. Free trial software is available for Windows and Mac, and the mobile pages link to free lite versions. Prices are $9.95, paid once for Android, $14.95, paid once for iOS, and $39.95, paid once for Mac/Windows. Each purchase is a single-user license, with a separate license required for each platform.

Vivid Practice helps music teachers organize student assignments and encourage regular practice. Teachers can bulk upload assignments from spreadsheet templates, track student progress, attach audio, video, and PDFs, and arrange work in folders. Students use the mobile app to work in Blocked, Interleaved, Pomodoro, or Focused practice modes. Students or parents can set practice schedules and receive reminders, and students can message teachers between lessons. Teachers use the website, whose dashboard is mobile responsive in a browser. The service is designed for one teacher per account; schools can share an account or create one for each teacher. It does not set required practice times for individual pieces, though teachers can write time guidance in assignment notes, and it has no practice listening or compare-recording feature. The free plan covers one student. Paid plans start at $9 a month for 2–10 students, with tiers for larger studios and schools up to 500 students at $39 a month. Vivid Practice is available on the web, Android, and iOS.