Podcast client built with Electron and AngularJS.
Poddr uses iTunes RSS feeds and Search API to gather information.
The downloaded file is a normal .exe file. Just doubleclick it and install as usual.
Quotes from AppImage projectpage
AppImages can be downloaded and run without installation or the need for root rights.
The key idea of the AppImage format is one app = one file. Every AppImage contains an app and all the files the app needs to run. In other words, each AppImage has no dependencies other than what is included in the targeted base operating system(s).
A normal .dmg file, install as you would normally do with any Mac software.