Runtune

RunTune adjusts the playback speed of your local music to match a target BPM you choose for walking, running, and workouts.

YOUR MUSIC, YOUR PACE • Import MP3 and M4A audio files from Files. • Analyze a song’s BPM or enter its original BPM manually. • Choose Walk, Power Walk, Run, or Power Run presets, or set a custom target BPM. • Pause, resume, seek, and return to the original playback speed. • Continue listening in the background and use supported Lock Screen playback controls.

PLAYLISTS TO KEEP AND SHARE • Create playlists with your preferred song order and target BPM settings. • Add songs from the library or player and edit your playlists. • Share a playlist card and a RunTune playlist file. • Import playlists shared with you, check which songs are missing, and connect your own music.

Shared playlist files contain song information and pace settings, not audio files. Open the accompanying .runtune attachment in RunTune to add a shared playlist. Participants listen independently; synchronized group playback is not included.

No account is required. Audio playback and BPM analysis take place on your device.