KisMAC
KisMAC is a free and open-source wireless network scanner and stumbler for macOS. It was developed by Martin Herfurt and is designed to help users detect and analyze wireless networks in their vicinity. The software provides detailed information about nearby access points, including their SSIDs, signal strength, channel, and encryption type. KisMAC also supports packet capturing, allowing users to analyze the data transmitted over wireless networks. It is particularly useful for network administrators and security professionals who need to monitor and troubleshoot wireless networks. The application features a user-friendly interface and offers various tools for network analysis, such as a GPS mapping feature to track the location of access points. KisMAC is available for download from its official website and is distributed under the GNU General Public License.