A free app for Android, by Baobuphili.

This app is not only for the people with hearing loss. You can also use it to listen to others, improve your hearing, or just to listen to what you want.

How does it work?

It boosts the sound that it picks up, allowing you the hear it very clearly. It’s especially useful while listening to lessons but can’t understand what the speaker is saying due to their quiet voice.

You can control how loud you want the app to project the sound it picks up as well.