Up Tempo: Pitch, Speed Changer
Audio & music editor, looper
Free · In‑App Purchases
Remove vocals, split any song into stems, and change pitch or speed — all on your device, with no account and no upload. Up Tempo is a music practice tool and audio editor for singers, instrumentalists, transcribers, and producers. Slow down a solo to learn it. Drop a track's key to match your voice. Isolate the drums to practice along. Loop the hard bar until it clicks.
PRACTICE ANY SONG
• Slow down or speed up music in real time without changing pitch
• Transpose up or down by several octaves, with a preserve-formant option that keeps vocals natural
• Reverse playback for ear training and transcription
• Precise AB loop points on a pinch-to-zoom waveform
• Save loop points, effects, and settings per track and pick up where you left off
VOCAL REMOVER & STEM SEPARATION (Pro)
• Runs on your device — no account, no upload, works offline once models are installed
• Choose a fast 2-stem model (vocals / instrumental) or a higher-quality 4-stem model (vocals, drums, bass, other)
• Solo or mute individual stems in the mixer to build instant karaoke tracks or backing tracks
• Great for singers, guitarists, bassists, and drummers who want to play along with just the rhythm section
EDIT & MIX
• Trim music with millisecond precision; add fade in and fade out
• Multi-track editor: layer, align, and mix your own tracks into new arrangements
• Record vocals or instruments directly in the app (Pro)
• Waveform visualisation with pinch-to-zoom for accurate edits
STUDIO EFFECTS (Pro)
• Equaliser, reverb, delay, compressor, noise gate
• High-pass filter, low-pass filter, bass cut, panning, centre/sides isolation
• Creative effects: distortion (clip, saturate, crunch, overdrive), bit crusher, ring modulator
• Chain effects and toggle them on or off in real time
EXPORT & SHARE
• Export to MP3, M4A (AAC) at 128, 256 or 320 kbps, or FLAC lossless
• Edit title, artist, album, and album artist metadata before export
• Share exported tracks to any app
• Backup and restore your settings, markers, loop points
FREE vs PRO
Free includes pitch and tempo adjustment, looping (up to 6 markers), trim, fade, 2-track mixing, and export. Pro unlocks stem separation, vocal removal, recording, all studio effects, unlimited markers, and unlimited multi-track. One-time purchase, no subscription.
Up Tempo supports most common audio formats including MP3, M4A, AAC, WAV, FLAC and OGG.
Questions or feedback? Contact us at support@stonekick.com.
This software uses code of FFmpeg licensed under the LGPLv2.1 and its source can be downloaded below. https://stonekick.com/uptempo_ffmpeg.html http://ffmpeg.org http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
This update improves the way you create and edit markers. You can also now save multiple loops.
We hope that you like these changes. If you have any questions you can get in contact at support@stonekick.com.
The developer, Stonekick Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Stonekick Limited
- Size
- 72.3 MB
- Category
- Music
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- UpTempo advanced audio editing $9.99
- Copyright
- © 2026 Stonekick Limited