iStumbler

What iStumbler is

iStumbler is a macOS wireless-discovery tool for examining Wi-Fi networks, Bluetooth devices, Bonjour services, location information and spectrum use. Its Wi-Fi view lists visible networks, shows network type and encryption status, graphs signal and noise over time, and opens a connection monitor. Bluetooth tools list connected and discoverable devices and provide controls for setup, pairing, browsing and file transfers. Bonjour supports browsing by service type, host name and wide-area services. A channel tool maps usage and rates channels across 2.4 and 5 GHz spectrum, with regulatory information and scan times. Location features can show discovered Wi-Fi locations, optionally track computer movement, and export locations and movement tracks to Google Earth. With Oscium’s WiPry 5x, the analyzer displays real-time 2.4 and 5 GHz activity in a waterfall view. CSV logs cover Wi-Fi, Bluetooth, Bonjour and location data. The plan costs $14.99, paid once for all computers you own. The homepage says version 12.0.x crashes at launch on macOS Monterey and that the app is currently off-sale on the Mac App Store.