It scans, detects errors in Russian, has a user-friendly interface, and is compact! I've been using it for a long time, and those who trained me also used it. I think it should be made paid, but not too expensive: a maximum of 10 dollars, and improve the functionality! It lacks a quality report in csv, pdf (with images), html, and xlsx formats. It needs to be refined so that the parsing is as good as that of the frog, so it doesn't miss pages, and then everyone will switch to Site Analyzer.
