> For the complete documentation index, see [llms.txt](https://swit-school.gitbook.io/qa-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swit-school.gitbook.io/qa-book/testuvannya-mobilnikh-zastosunkiv/page-4.md).

# Page 4