夸克AI

Search, thinking and organizing in one place; enough for study and work research. But I haven't carefully checked how accurate its citations are, so I'm not fully confident.

Point the camera at material you can't copy and the text appears instantly, and a whole web page can be translated in one tap. Really handy when gathering material.

I thought auto-renewal was off, but days later found I'd been charged ninety-eight yuan for six months, with no notice at all. Getting a refund from support dragged on forever, and I hadn't used it once in that time.