Stemelo: Vocal Remover

Remove vocals and split music into four stems, then slow down, change key, loop difficult sections, and practice—all on your device.

ADD AND SEPARATE Import a local audio file or a video you own. On-device HTDemucs processing creates separate vocals, drums, bass, and other stems in one operation. Solo, mute, and balance each stem or choose a one-tap mix.

PRACTICE THE HARD PART Select an A–B region directly on the waveform. Snap the loop to detected beats when useful, or adjust it freely for precise repetition.

CHANGE SPEED AND KEY Slow music to 0.5× or raise it to 1.5×. Shift pitch from −12 to +12 semitones independently, so the song stays in sync while you find a comfortable key.

BPM, KEY, AND SMART CLICK The app detects tempo, beat positions, meter, and musical key with confidence values. Add an accented click that follows detected beats, use a count-in, or import your own short click sound. If analysis confidence is insufficient, the app says so and lets you enter the value manually.

PRIVATE BY DESIGN Audio and project files stay on your device. No account is required. Your latest workspace is saved locally. If separation is interrupted, it can restart without uploading your audio.

The included demo is unlimited. Your first local song, up to five minutes, includes all tools and remains playable and exportable. A Pro subscription is required for new separations after that. Subscription pricing is shown by the App Store before purchase. Restore Purchases is available in Settings.

Only process media you own or are authorized to modify. Protected Apple Music files and direct YouTube downloading are not supported.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/