EarDial is a free app designed for iPhone users to monitor the sound levels in their environment. It provides real-time information about the sound pressure levels you are exposed to and calculates how long you can safely remain in that environment without risking hearing damage. The app also offers insights into the decibel scale, noise dose formula, and attenuation standards.

Whether you own EarDial HiFi Earplugs or not, this app serves as a valuable tool for sound awareness. Users can compare results with or without the earplugs, with the option to activate an EarDial switch for adjusted calculations based on EarDial attenuation levels. Additionally, the app allows for calibration to specific devices, providing a personalized experience.