ahh sorry its cancel, I am really Sorry.
For building app for Linux or Mac I should have Linux or Mac which I don't, soooo its cancel, sorry :(
But if you really want it and have a Mac or Linux you can build it yourself and it have build in update
Donwload Codes From: https://github.com/RealLowMaster/X-Comic-Downloader-Project and it have tutorial of how to build the app under the page