Amazing Slow Downer vs Practice Space

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.

Practice Space is a music lesson platform for teachers creating digital assignments and supporting students' practice. Teachers can save teaching points in a reusable library and attach videos, links, PDFs, and other files to assignments. Practice logs track time, completed assignments, and progress toward goals. Students can send practice videos for teachers to comment on or like between classes; group assignments and chat provide ways to share progress. Students can earn streaks, badges, gems, and other achievements, and teachers can customize awards. Teachers can use the web app and teacher app, while students can access lessons on the web or through iOS and Android apps. Teacher accounts include unlimited student accounts, and students are not charged. A 30-day trial is available without a credit card; the pricing note lists paid plans from $13.33/mo (annual). Uploaded files are limited to 1 GB, and videos recorded directly into assignments are limited to five minutes. The privacy policy says the service is directed to children under 13 and describes parental rights to review or request deletion of a child's information.