What are Delta Waves, and how can they help you?

They are high amplitude brain waves that are associated with the state of deep sleep known as REM. They are the slowest waves, and have a frequency between 1 and 4 Hz.

Delta Waves is an app that allows you to recreate that sound, helping you sleep deeply. Start the frequency, and adjust it to your liking by moving your finger across the white dot-slider placed on the sound-wave at the center of the screen. The frequency range is between 130 and 300Hz, and the wave amplitude is set to 2.5Hz. You can start the sound by pressing the Delta button on the top left before going to bed; you will notice a significant change in the quality of your sleep during the nights where you use it. We strongly suggest the use of headphones while using it.

To help you sleep even better, we added several different functions. You can choose to add 7 different songs and 5 ambiental noises/sounds of nature to the Delta Wave to relax even more. The built in timer allows you to set how much the app will play. Finally, you can change the background color through your settings: choose among 5 relaxing Delta Wave inspired tones. By purchasing the full version of the app, you can unlock and enjoy all of these functions and improve your experience.

We put a lot of thought and passion in creating this app, and we hope that by using it many people will discover the power of brainwave entrainment and isochronic tones. Use it to improve the quality of your rest.

For any suggestions, problems or requests please contact us at

Ratings and Reviews

3.9 out of 5
27 Ratings
27 Ratings
NightRelic1 ,

Great on iPad

I've always had trouble falling asleep. I've used the Night Time Fan App somewhat successfully. Someone suggested I try something that would impact specific brain waves. I downloaded this on my iPad. It works pretty well. You'll have to mess with the pitch to see which works the best for you. I like it best without the music. I decided to download on my iPhone. It sounds a lot different. It's clunkier, with the throbbing beat standing out a lot more. I don't think it will work for me like that.

Solo dextrose ,

Works great!

I had a hard time sleeping when I got the piles. I played this at night and fell asleep right away. 2nd night I was still awake. No biggie I set it to 10 minutes and it worked. If you ever wake up in the middle of the night and can't go back to sleep, don't play Candy Crush or read a book, just play this app instead!

wrdz ,

Makes me less tired and more stressed out

The main part of the ONE song you get is relaxing until it loops to a sound that evokes the same thing as nails on a chalk board; it’s like an electronic bird chirping. For the $3 that’s required to download the app you should have more than one song option. To get access to more than one song you have to pay even more money, but don’t even get to preview them to see if the chirping is omitted. So disappointing.


Equilibrium Srl
34.1 MB
Health & Fitness
Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.
English, Italian, Spanish
Age Rating
Rated 4+
© Equilibrium Apps
In-App Purchases
  1. Delta Waves Full Pack $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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