Neon Engine

Slowed + Reverb Audio Engine

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Transform local audio with Bass Enhance, Slowed + Reverb, City Pop, and Fast Tempo. Preview, fine-tune, and save every track privately on your iPhone. Transform your music into a sound that feels uniquely yours. Neon Engine is an on-device audio workshop for reshaping local music with immersive effects. Import a track, preview different styles, fine-tune the result, and save it to your personal library—all directly on your iPhone. -- AUDIO MODES -- Bass Enhance: Add more weight and depth to your music with a stronger low-end sound. Slowed + Reverb: Adjust the tempo, tone, and reverb to create a deeper, more atmospheric mix. City Pop: Give your track a bright, nostalgic character inspired by retro nighttime soundscapes. Fast Tempo: Speed up your music with adjustable tempo controls, from a subtle lift to a high-energy remix. Original: Save and manage the original track alongside your converted versions. -- BUILT FOR YOUR MUSIC -- Live Preview: Hear each effect before saving and fine-tune supported modes in real time. Personal Library: Organize converted tracks, rename them, filter by effect, and mark favorites for quick access. Bulk Actions: Select multiple tracks to update favorites or delete them together. Files Integration: Import compatible audio files directly from the iOS Files app. Background Playback: Continue listening to tracks from your Neon Engine library outside the app. -- PRIVATE BY DESIGN -- Your music stays on your device. Audio processing is performed locally without uploading your files to a remote server. Neon Engine is designed for local audio files you own and for personal, creative use.

Ratings & Reviews

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Neon Engine 1.1 expands your audio workshop and makes your library easier to manage. Added Fast Tempo with adjustable playback speed. Added Favorites with a dedicated library filter. Added multi-select actions for managing several tracks at once. Improved Workshop previews, saving behavior, artwork loading, and playlist stability. Refined the library interface and action feedback.

Version 1.1

The developer, JUNGYUN JO, 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 Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Size
    3.5 MB
    Category
    Music
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    English
    Age Rating
    4+
    Provider
    JUNGYUN JO
    • JUNGYUN JO has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
    • Address
      South Korea
      Seoul
      Seoul
      NescoLowa 1005
      68-18
      Namhyeon 1-gil, Gwanak-gu
      08807
    • Phone Number
      +82 1032499072
    • Email
      JJyun2829@gmail.com
    Copyright
    © 2026 Jo Jung-yun. All rights reserved.
  • Privacy Policy

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