When using older versions or modified versions of osu!droid, you'll find that entering 'get songs' results in a black screen. The new version I could still download yesterday, but today it just crashes immediately. As for the official homepage website, downloading requires registration, and if you don't have a computer, you can't register. So, this website is provided; after going in, you can directly search. (When I used UC Browser, the webpage didn't display correctly, so I suggest not using UC. I used Baidu.) The URL was made into UBB incorrectly, so everyone can just copy and paste it: http://bloodcat.com/osu/