iStumbler is the leading wireless discovery tool for macOS, with tools for investigating: Wi-Fi networks, Bluetooth devices, Bonjour services, Location information, and now 2.4 & 5 GHz Spectrum analysis with your Mac.

Release 103 adds a Live Map, Bluetooth LE Support, Real-Wave Spectrum View for WiPry devices, TouchBar support and many, many assorted bug fixes and enhancements.

What’s New

Version 103.43

103.43 - Fixes a potential crash when Location Services are disabled, adds debug symbols for all plugins and frameworks

Ratings and Reviews

3.0 out of 5
14 Ratings

14 Ratings

DOS486 ,

Awesome app!

Great app! Thanks for making it, I noticed when trying to switch maps that it doesn’t switch.

Developer Response ,

Hey DOS486 (Great Username!),
Thanks so much for the review. I've patched a bug which disabled the Location plugin, the update will be live on the store any moment. Should resolve the Maps pull-down not working and will show you the estimated locations of local Wi-Fi networks and Bluetooth devices.
Best, Alf

FloBro ,

Show me what connects me

WIFI is inherently invisible and with this hard to grasp. Minimal information provided by MacOS or professional tools that are diffciult to navigate both don’t offfer a viable solution to navigate wireless connections for amateurs with a reasonable half-knowledge.

I have used many versions of iStumbler over the years to resolve WIFI issues and this is finally an Apple-approved version. Well worth the money if you use wireless connections.

MMOFinken ,

Great product!

I was a bit intimidated as to what a tool like this would require from me in terms of learning curve etc. Very easy to use, poweful. Impressed by all the information that it provides.


Alf Watt
1.9 MB

macOS 10.13 or later, 64-bit processor


English, Spanish

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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