Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
TamoGraph Site Survey - Wi-Fi site coverage survey and modelling application
GIMP - GIMP is a multiplatform photo manipulation tool.
Waircut - Free network audit app
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Homedale - With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.