After 4 attempts of submission App Store finally has published the app for e-maxx.
Thanks maxdiver for the right to use content in the website.
You may think why to use app if there is a pdf file. I just thought that it would be easier to search using the app.
Now it is only in russian and available only for iOS.
The link to the app: https://itunes.apple.com/us/app/e-maxx/id1255128609?ls=1&mt=8 The link to github project: https://github.com/aatalyk/e-maxx