Pest Repellent is a utility application designed for iPhone users that combats various insects, including mosquitoes, flies, and ants, through sound frequency technology. By utilizing frequencies ranging from 15kHz to 21kHz, the app aims to repel unwanted pests effectively. Users can select the desired frequency to target specific insects, making it a versatile tool for pest control.

This app offers features such as mosquito repelling, fighting against various pests, and anti-ant measures. However, caution is advised when using the app, as exposure to loud sounds may cause hearing damage or equipment issues. It is recommended to adjust the audio system level appropriately before playing sound files to ensure safe usage.