Ultrasonic Pest Repeller is a free iPhone application developed by Duan Nguyen. It falls under the category of Lifestyle and specifically targets Health & Fitness. This innovative app utilizes ultrasonic waves, which are beyond the audible range for humans, to repel pests such as mosquitoes and other insects.

The application emits high-pitched sounds that are repugnant to pests, effectively deterring them from approaching the user. By doing so, it helps prevent mosquito bites and keeps other bothersome insects at a distance. The ultrasonic waves are generated continuously in the background, ensuring constant protection without any disruption to the user's daily activities.

Ultrasonic Pest Repeller is a simple yet powerful tool for those seeking a natural and non-invasive method to keep pests away. With its user-friendly interface and effective ultrasonic technology, this app provides a convenient solution for individuals looking to avoid the discomfort and potential health risks associated with insect bites.