 | |
| Developer(s) | Alf Watt |
|---|---|
| Stable release | Release 103 / November 14, 2017 |
| Operating system | OS X 10.2 to macOS 11 |
| License | Proprietary |
| Website | http://istumbler.net/ |
iStumbler is a utility for finding wireless networks and devices with AirPort or Bluetooth-enabled Macintosh computers. [1] [2] [3]
iStumbler was originally based on MacStumbler source code.[ citation needed ] Its early development focused on detection of open wireless (802.11) networks,[ citation needed ] but more recent versions support the detection of Bluetooth wireless devices and Bonjour network services. [4]
Up to release 99, iStumbler was open-source under a BSD license. [5] It was later changed to nagware, having a pop-up screen every 30 minutes but otherwise being fully functional. [6] Current releases require a payment to use.
The app has been delisted from the Mac App Store by the developers due to it not functioning properly on macOS Monterey and above. [7]
iStumbler uses the AirPort card built into Macs. It automatically scans for Wi-Fi and WLAN networks, [2] and can also detect Bluetooth, Bonjour, and other AirPort networks. [1] The software shows a graph which displays the network name, the type of security, the vendor, the signal, the channel, and the MAC address of listed networks. [5] A graph showing the history of signal strength can also be displayed. [4] It can be used to join listed AirPort networks without configuration and to join Bluetooth networks as well. [1] It uses GPS data to display the coordinates of the computer being used and nearby Wi-Fi points. [6]
iStumbler works by sending out probe requests to all available access points and displaying the information received from those requests. [1]
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