with scihub you can look for scientific articles and paper with flexibility .
the problem of scientifique research is to find the articles and paper for free, so by scihub App you can resolve this problem.
many journals like scopus , springer, IEEE, sciencesDirect, web of science , make thier paper price more expansive ,so it is difficule to buy it.
scihub 2022 is and easy to use , you can test it .
take a view into this app.