Music Speed Changer - Slouly

Slowed + Reverb, Tempo & Pitch

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Slow it down. Speed it up. Make it yours. Slow it down. Speed it up. Make it yours. Slouly changes the tempo, pitch and sound of any song on your iPhone. Slow a track right down and it still sounds like music, because the pitch stays where it was. WHAT YOU CAN DO: - Slow a song down to learn a part, or speed it up to practise at tempo - Shift the pitch to match your voice or your instrument - Add room reverb for depth and space - Boost the bass, and choose the frequency it works on: 60, 80, 120 or 200 Hz - Turn on Pan Speed for an 8D effect that moves the sound around you - Export as Apple Lossless, ready to share anywhere HOW YOUR MUSIC GETS IN: 1. Share a song or a video to Slouly from any app, including Photos. 2. Or import from Files, or pull the audio out of a video you already have. 3. Slouly keeps the title, artist and artwork, so your library stays tidy. PRESETS: Save a combination of tempo, pitch, reverb, bass and pan as a preset, then bring it back with a tap. Rename, reorder and delete them as your setup changes, so the settings you use every day are always one tap away. EXPORTS THAT STAY ORGANISED: Every export keeps the original song's tags, with Slouly credited. The filename carries the values you used, and an export that would overwrite an earlier one is numbered instead. Synced lyrics are rescaled to the new tempo and the BPM tag is scaled to match, so the file still lines up wherever you play it. BUILT FOR: - Musicians learning a part at a slower tempo - Singers matching a track to their range - Dancers and DJs setting the speed they need - Anyone who wants a song to sound the way they like Web: https://tryslouly.app Privacy: https://tryslouly.app/privacy Terms: https://tryslouly.app/terms

Ratings & Reviews

  • 4.7
    out of 5
    13 Ratings

Slouly v1.0.6 brings your music in from anywhere. Share to Slouly. Songs and videos shared from other apps, including Photos, now open straight in Slouly. Presets. Save a set of tempo, pitch and effect values, then bring it back with a tap. Rename, reorder and delete them as your setup changes. Your tags are kept. Exports carry the original title, artist and artwork with Slouly credited. Synced lyrics are rescaled to the new tempo, and the BPM tag is scaled to match. Lossless export. Every export is Apple Lossless in an m4a file. Fixed: an export whose name already exists is numbered, "name (2).m4a", instead of overwriting the earlier file. Also new: a Settings screen with a switch for crash reports, and a Credits screen.

Version v1.0.6

The developer, Aibek Mazhitov, 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:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Aibek Mazhitov
Size
10.1 MB
Category
Music
Compatibility
Requires iOS 26.0 or later.
  • iPhone
    Requires iOS 26.0 or later.
  • iPad
    Requires iPadOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Aibek Mazhitov
  • Developer Website
  • Privacy Policy

    • More by Aibek Mazhitov

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