iStumbler

Spec sheet

Purpose

iStumbler is a macOS wireless discovery tool for investigating Wi-Fi networks, Bluetooth devices, Bonjour services, location information and spectrum usage.Read 8 Oct 2026 · istumbler.net

Support

The manual directs users with questions or bug reports to the FAQ and Bug Reporter and lists [email protected] as the support contact.Read 8 Oct 2026 · istumbler.net

Maker

iStumbler Labs says it is operated by Alf Watt and produces software for macOS, iOS, tvOS and the Web.Read 8 Oct 2026 · istumbler.net

Bluetooth

It lists connected and discoverable Bluetooth devices and provides controls to set up, pair, browse and send files to devices.Read 8 Oct 2026 · istumbler.net

Bonjour

It supports forward browsing by service type, reverse browsing by host name and wide-area Bonjour browsing.Read 8 Oct 2026 · istumbler.net

Channel analysis

Its channel tool provides a usage grid and ratings for 2.4 and 5 GHz spectrum, with channel ratings, regulatory information and scan times.Read 8 Oct 2026 · istumbler.net

Current availability notice

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.Read 8 Oct 2026 · istumbler.net

Location

The location tool can show discovered Wi-Fi network locations, optionally track computer movement and export location data and movement tracks to Google Earth.Read 8 Oct 2026 · istumbler.net

Logging

It can output CSV logs of Wi-Fi networks, Bluetooth devices, Bonjour services and location information for spreadsheet analysis.Read 8 Oct 2026 · istumbler.net

Platform limitation

The maker describes iStumbler as a tool for macOS and sells it for Mac computers through the Mac App Store.Read 8 Oct 2026 · istumbler.net

Release status

The changes page lists Release 103 dated 14 November 2017 and describes its additions including a Live Map, Bluetooth LE support and TouchBar support.Read 8 Oct 2026 · istumbler.net

Spectrum hardware support

The spectrum analyzer supports Oscium’s WiPry 5x and displays real-time 2.4 and 5 GHz spectrum in a waterfall view.Read 8 Oct 2026 · istumbler.net

Wi-Fi inspection

It lists visible wireless networks, indicates network type and encryption status, graphs signal and noise over time, and can open a connection monitor for a network.Read 8 Oct 2026 · istumbler.net

Plans and prices

Every iStumbler plan and price →

Where Specifiction places it

• Wi-Fi Analyzer Software#17 of 297.4
• Network Discovery Software#26 of 357.3