MHz — wireless frequency coordination that travels with you.
Whether you're mixing monitors on a world tour or setting up two handhelds in a school hall, MHz helps you find clean, legal frequencies for wireless microphones and in-ear monitors — anywhere, even offline.
Find clean spectrum, anywhere
Location-aware lookups show you which TV channels and white spaces are actually free where you're standing. In the United States, United Kingdom, Canada, and Australia, the full transmitter database is bundled into the app — no signal required. In Denmark, Sweden, Norway, and Finland, MHz queries the national regulators' own live frequency services for the most current picture, and regulation summaries for 40+ more countries are always available offline.
Talk to your gear.
Link MHz directly to Shure and Sennheiser hardware on your network. See live RF and battery status, push frequencies to your receivers, or pull their settings into your show file — per channel or a whole group at once.
Collaborate with your crew.
Share frequency groups with other MHz users via iCloud. Everyone sees the same plan, updates arrive with push notifications, and nobody's working from an outdated spreadsheet.
Import and export freely.
Bring in coordination files from Wireless Workbench and Soundbase, merge them into your groups, and export frequency ranges back out. MHz plays nicely with the tools you already use.
Actually understand RF.
The built-in Intermod Tool teaches you intermodulation from first principles — interactive chapters plus a playground where you drag transmitters around a virtual stage and watch the spectrum react. Great for students, ATDs, and anyone who's ever asked "why does channel 3 drop out when channel 5 keys up?"
No accounts, no subscriptions to your own data — your coordination lives in your iCloud.
I tried using this app to search for open wireless frequencies in Los Angeles for my Sennheiser G4 wireless mic systems and could not get it to work at all. It kept telling me to input a specific address and then search. When I did enter a address still nothing productive happens with this app. I know it’s only $.99cents but to me I feel ripped off. THIS APP IS A DUD!!!
Developer Response
Sorry about this one — v1’s US frequency data came from a third-party database that had already gone out of business by the time you tried this, so the address box was asking for details it had nowhere left to send. Not a great experience, and not a great look for us for depending on it in the first place. v2 replaces that pipeline entirely with native coverage across 60+ countries, so Los Angeles is back on the map — literally.
Did not work at all for me
kkphoto
Trying to find anything in my area using the map gave only error messages. We are in a well known and popular city.
Developer Response
The map wasn’t broken, exactly — it was faithfully querying a US data source that had already shut down, which from where you’re sitting is a distinction without a difference. v2 rebuilds that coverage in-house across 60+ countries instead of leaning on a single external vendor’s continued existence. Update and your city should show up properly now.
Doesn’t do anything.
Boomduder
Can’t get any frequencies in the US. It used to work, but not anymore.
Developer Response
You’re right, and that one’s genuinely not on you. v1’s US frequency data came from a third-party database, and that provider quietly went out of business — taking US search down with it without us changing a single line of code. Great business model for them, less great for you. v2 rebuilds US coverage in-house as part of a proper 60+ country database, so it’s back, and it’s no longer riding on some other company’s server staying online.
quits immediately
jabnyc2112
horrible app. quits immediately. support website doesn’t work. don’t waste your 99 cents
Developer Response
Can’t argue with any of that — v1 crashing on launch was less a bug and more a personality trait. We didn’t patch it, we replaced it. v2 is a ground-up rebuild that actually opens and stays open. If the support link still 404s on you, reply here directly and we’ll fix you personally, out of spite for our old website.
Fixed a connection issue with PSM1000
You now have the option specify which network card to use when connecting to devices
Version 2.0.1
The developer, Jakup Andrias Knudsen, 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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Jakup Andrias Knudsen
Size
14.1 MB
Category
Business
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.
