I'm trying to figure out how to just get unanswered questions by a tag in the Stack Overflow app. Is it possible right now? If not can anyone give an ETA on when this is coming out?
I'm not quite sure about the Android app, but with a web browser you can search
which will return you with results that carry the tag [your-tag] and has no visible answers.
If you'd like to compete with existing answers, you can replace
hasaccepted:no so questions that has no accepted answers will also show up.
The search engine is the same across platforms (see quotation below) so you can try it on the Android app.