RepelBuzz is a free Android utility designed to deter common pests such as mosquitoes, flies, and rodents through high-frequency sounds emitted from your smartphone. This experimental tool utilizes your device's speaker to produce ultrasonic frequencies that are generally uncomfortable for pests while remaining safe for human hearing. The app features multiple presets tailored for different pests and a live frequency tester, allowing users to find the most effective settings for their environment.

Key features of RepelBuzz include adjustable volume controls, a user-friendly timer for automated operation, and targeted presets for specific pests. However, it is important to note that the app's effectiveness can vary based on the device used, the surrounding environment, and the specific type of pest. As such, it is recommended to use RepelBuzz as a supplemental tool within a comprehensive pest management strategy.