As the digital landscape becomes more complex, brands must cater to their customers' needs through various devices, platforms, and channels. With limited resources, brands tend to choose established locations to serve their customers. However, with mobile devices becoming a fixture of everyday life for millions of people, companies need to ensure their apps are optimized and ready for cutting-edge smartphones. This can only be achieved through testing and optimizing apps on the latest mobile devices. Digital testing for mobile apps is crucial for ensuring a positive user experience, attracting and retaining customers, and increasing business reach. Testing mobile apps ensures the look, performance, and functionality of the app work on multiple devices. Optimizing the app for the most popular OS combinations among the target audience delivers a seamless experience, regardless of the device or OS.