Protokol - MIDI/OSC Monitor

Control protocol test utility

Free · In-App Purchases

MIDI logging, OSC monitoring, and more... Protokol is a new utility by Hexler for the creator's toolbox: A lightweight, responsive console app for monitoring and logging control protocols. Originally built as a MIDI monitor and Open Sound Control network checker, Protokol is designed to handle any complex message stream. MIDI, OSC, Art-Net and Gamepad controller sources are all supported in the current version - but anything is possible given sufficient demand. Contact us if you'd like to see additional protocols added: Let us know.

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- Fixes for possible problems on iOS 26 - Fixed Bluetooth MIDI controller dialog issues on older iOS - Updated Privacy Policy: Added additional resellers/payment processors - Updated game controller mapping database - Minor bug fixes and improvements

Version 0.6.3

The developer, Hexler LLC, 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:

    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, 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

  • Size
    • 7.9 MB
  • Category
    • Music
  • Compatibility
    Requires iOS 12.0 or later.
    • iPhone
      Requires iOS 12.0 or later.
    • iPad
      Requires iPadOS 12.0 or later.
    • iPod touch
      Requires iOS 12.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English
  • Age Rating
    4+
  • In-App Purchases
    Yes
    • Generous Contribution €22.99
    • Kind Gesture €9.99
    • Pocket Change €5.99
    • Learn More
  • Provider
    Hexler LLC
    • Hexler LLC has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
    • DUNS Number
      680111863
    • Address
      〒135-0063
      Tokyo KOTO-KU 3-7-26, ARIAKE
      ARIAKE FRONTIER BLDG. B TO 9F.
      Japan
    • Phone Number
      +81 7044761467
    • Email
      support@hexler.net
  • Copyright
    • © 2019-2025 Hexler LLC. All rights reserved.
  • Developer Website
  • Privacy Policy

    • More by Hexler LLC

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