Ключевые слова: app design, app development, app prototyping, app testing, application design, design prototype, design software, design tool, development, graphic design, graphic development, graphic software, interface, interface design, mobile app, mobile design, mobile ui, mockup, prototype, prototype design, prototype testing, prototyping, software, software development, testing, ui design, ui development, ui testing, ui ux, user experience, user interface, user testing,