Ear Booster - Better Hearing: Mobile Hearing Aid is a free Android application developed by Zygne Apps, designed to improve your hearing by using your Android device as a hearing aid. With a simple user interface, it allows you to select the audio source and fine-tune the equalizer to get the best audio quality. The app also includes a noise suppressor, user notifications, works in the background, and allows you to record audio.

To use the application, a headset is required. Not using a headset will result in terrible feedback. The main purpose of this application is to function as a hearing aid, but it can also be used for ghost hunting, as it allows you to hear conversations from the other side. The application requires permission to access the internet, but only to display ads, and permissions for audio, to allow the app to use the microphone of the device to improve the user's hearing.

Overall, Ear Booster - Better Hearing: Mobile Hearing Aid is a simple and effective app that can improve your hearing immediately. However, users are advised to act responsibly when using this application.