Work with documentation:• Creating test cases and checklists using various test design techniques (boundary values and equivalence classes, pairwise testing)• Generating test data• Combining Tests into a Test Suite• UI / UX testing - evaluating the convenience of the application for users, according screens to layouts in Figma• Network testing - the performance of the application with different quality of the internet network• Functional/Non-functional testing - testing individual modules (functions) of the application• Exploratory testing/ad-hoc testing - due to the incompleteness, and sometimes the completeabsence of requirements for the application, it was necessary to rely on personal experience in usingother messengers and resort to ad-hoc and exploratory testing• Regression testing - after a new application build released• logs analysing• Installing correct application build into devices using Git• Communication with developers and other teammates