Not working in the sence of not being able to open the file after downloading it.
Are you able to install other android games from APK files on itch? For security reasons, android by default won't let you install apps from APK files you just download off websites, so you have to manually go into your app settings and allow it to 'install unknown apps.' If you already did that, then I'm not sure. I only tested it on one android device, but it worked on that device.