Remove vocals, slow down without changing pitch, drop the key, and loop exactly the bars you're practicing — everything runs on your iPhone. Nothing is uploaded.
For singers and players: the tools you actually use in the practice room, with none of the quotas or fees.
On-device AI splits any song into vocals and backing. Practice over a clean instrumental, or solo the vocal to study the phrasing.
50–150% speed with clean time-stretching. Step-Up Tempo raises the speed a little every loop — the classic way to master a hard passage.
±12 semitones while the music plays. Session detects the song's key and shows you exactly where your transposition lands.
Drag precise A-B handles on the waveform, snap them to the detected beat, and save named bookmarks (verse, chorus…) to jump between.
Import a video from Photos and practice with its audio. Export the original picture retimed to your slowed, re-keyed, vocal-free mix — straight back to Photos.
Session analyzes the song on import: tempo with beat gridlines on the waveform, and the song's key — all computed on your iPhone.
No account. No cloud. No upload. Your music never leaves your phone — and there's no monthly fee, no usage quota, no catch. Practice on the plane if you like.