键盘移调器

电子键盘乐器移调助手

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

Transpose your keyboard in real time from iPhone/iPad. Connect, pick a key—the app handles it. Works with Yamaha, Korg, Roland, Nord & more. Multi-device sync supported. SUBSCRIPTION REQUIRED: Transposer is a free download, but an auto-renewable Transposer Pro subscription (In-App Purchase) is required to access the app’s features. A free trial may be available. Subscription length and price are shown in the app and on the App Store purchase sheet before you confirm. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Transposer is a MIDI transpose utility for electronic keyboards. Connect a compatible keyboard via USB, choose your instrument profile, and reach your target key in one tap. Features unlocked with Transposer Pro (In-App Purchase): • One-tap transpose control for live performance • Support for many popular keyboard models • Multiple device connection • Custom presets for songs and keys • Background MIDI while the screen is locked Privacy Policy: https://briancaoyu.github.io/Transposer/privacy.html Terms of Use (EULA): https://briancaoyu.github.io/Transposer/terms.html

  • This app hasn’t received enough ratings or reviews to display an overview.

When importing a PDF with the same name, choose Replace and clear handwriting drawn in this app, or Import with a new name; deleting a score and importing the same name again opens it as a fresh file. Added support for Roland XPS-10 / XPS-30 / XPS-10X / XPS-60.

The developer, 宇 曹, 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.

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

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

    Seller
    • 宇 曹
    Size
    • 3.8 MB
    Category
    • Music
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Yu Cao