First, nice work you put into the app. As a huge fan of yt-dl, I envisioned arkTube to be quite the coup de gras as far as scrapers are concerned. Had you been able to encapsulate in the apk more of its progenitor's power, your app would be my go-to!
Very much interested in your project, I donated toward ongoing development before testing the app to see whether (and to what degree) it worked. arkTube has potential; definitely if more of the py attributes of the original youtube-dl are permitted to work unfettered.
For now, arkTube is able to perform via the youtube app alone, rejecting shares from youtube/tubesites in browsers, other apps in general and it lacks a means of inputting URLS directly into the apllication itself.
By no means do I regret supporting your development efforts to date. I trust you are working in a conscientious manner to bring more amenable elements to the fore in due time.
Again, I appreciate and thank you for sharing your awesome work!