QTI phone app stands for Qualcomm Technologies, Inc. phone application. It is a software application designed by Qualcomm to help users explore and test various features of their mobile devices that are powered by Qualcomm's Snapdragon processors. The application provides detailed information about the device's hardware and software components, including CPU, GPU, memory, camera, and sensors. Users can run diagnostic tests, check system performance, and troubleshoot issues with the help of the QTI app. The application also gives users access to advanced features, such as device overclocking and network optimization. Overall, QTI phone app is a powerful tool for mobile users who want to understand and optimize their device's performance.