A free app for Android, by UNSTOPPABLE.

This Meditation and Learning Sounds app provides a large variety of learning and meditation sounds for your personal use. It contains a lot of high-quality sounds to help you achieve a deeper level of relaxation and focus, and helps you improve your concentration, memory, focus, sleep, and overall brain function. The app can also help you with achieving goals, focusing, stress relief, concentration, and more. It is ideal for both Android phones and tablets.

The app includes a variety of different meditation and learning sounds, such as nature sounds, rain, waves, waves, ocean waves, birds, wind, snow, rain, thunderstorm, thunder, and more. It is great for both relaxation and concentration. It is also great for people who need to be in the present moment, or who have problems with their attention.