The importance of manual testing on mobile devices cannot be overstated, as it fills the gaps in automated testing and ensures that software works as intended by real users. Manual tests are used to answer questions about user experience, such as comfort and ease of use, and measure reactions to test functions. To perform effective manual tests, one must organize and standardize the tests, plan them out, run them, note errors, register errors, repeat the process after code changes, select different devices, and maintain consistent standards for mobile testing. By following these steps, organizations can encourage greater dedication and higher quality in their software, monitor user reactions, and identify areas for improvement.