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.
Ratings & Reviews
- 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
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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hexler LLC
- 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+
- 4+
- In-App Purchases
Yes
- Kind Gesture $9.99
- Generous Contribution $19.99
- Pocket Change $4.99
- Copyright
- © 2019-2025 Hexler LLC. All rights reserved.