Brain Waves - Binaural Beats

Contains adsIn-app purchases
4.1
6.8K reviews
1M+
Downloads
Content rating
Everyone
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About this app

**With this app, you can easily generate pure tones that help stimulate focus, meditation, or deep relaxation.**

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**⚠️ Very Important**
• Use headphones for the best sound experience.

• Do not use this app while driving or operating heavy machinery.

• Protect your hearing — high volume is not necessary.

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**🎛️ Create and Customize Your Own Frequencies**

Easily generate and save your own frequencies using two independent oscillators.
Control them with horizontal sliders, fine-tune with adjustment buttons, or tap the frequency values to input precise numbers (supports two decimal places, e.g., 125.65 Hz).

All sounds are generated **in real-time** — not pre-recorded — allowing uninterrupted playback for as long as you wish.

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**🧠 How It Works**

Binaural beats are a perceptual audio illusion that occurs when two slightly different frequencies are played separately in each ear. Your brain interprets the frequency difference as a rhythmic beat, which can influence your mental state.

For example, playing 300 Hz in one ear and 310 Hz in the other creates a perceived beat of 10 Hz — a frequency associated with relaxation or meditation.

For best results, always use headphones at a low to moderate volume. The binaural effect is only noticeable when both ears are engaged.

🔗 Learn more: [Binaural Beats – Wikipedia](https://en.wikipedia.org/wiki/Binaural_beats)

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**🎧 Audio Tips**

• Use headphones for a proper binaural experience.
• The app’s volume slider is separate from your device’s system volume — adjust both if needed.
• High volume is not required for effective results.

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**⚙️ Android Compatibility Note**

Newer Android versions may limit background processes to save battery and optimize performance.
Because this app uses real-time audio synthesis, this can affect audio playback.
To prevent interruptions, follow the instructions on:

🔗 [https://dontkillmyapp.com](https://dontkillmyapp.com)

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**💾 Manage Your Presets**

• Tap **"Tap to Save"** on the main screen to save your current settings.
• Enter a name and hit Save.
• To load a preset, tap **Presets** and select one from the list.
• To delete a preset, tap the trash icon.

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**🔊 Background Playback**

To keep the sound playing in the background, simply press your device’s **Home** button.
Note: Pressing the **Back** button will close the app.

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**⏱️ Timer Function**

Enter a time (in minutes), and the app will automatically stop when the timer ends.

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**🌊 Brainwave Types**

**Delta** – Deep sleep, healing, detached awareness
**Theta** – Meditation, intuition, memory
**Alpha** – Relaxation, visualization, creativity
**Beta** – Focus, alertness, cognition
**Gamma** – Inspiration, higher learning, deep concentration

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**✨ Key Features:**

* Helps with meditation and mindfulness
* Boosts focus for studying or work
* Promotes deep relaxation and sleep
* Blocks external noise
* Reduces stress and anxiety
* Real-time sound synthesis — no loops, no interruptions
* Works in the background (via Home button or Quick Tile shortcut)

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Updated on
11 Jun 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.1
6.49K reviews
A Google user
20 December 2018
Extremely useful, although it often glitches or skips or something and sounds like a loop... Might have something to do with sound wave dynamics, I don't know. Lately it keeps shutting itself off whenever I leave the app, and won't run in the background... in addition, the notification won't go away, saying that brain waves are running when they're not. Please fix this.
128 people found this review helpful
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T Davis
7 March 2021
I like the layout and the fact that you can control each ear separately, in addition to the way you can adjust the frequency without interruptions. And the ads are not bothersome. Assesories that are usually present is that other apps explain each main frequency category but I just assumed that the developer figured that you already knew the effects of the frequencies...which is fine by me. Maybe if it had an indefinite timer, but that may be a part of the pro version. I don't regret 5 stars!
70 people found this review helpful
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GreenWinterSky
6 August 2025
turns out audio works issue was that I had to reinstall but all my presets are gone I love this app because it genuinely is good for realigning chakras based on feeling you can adjust and align pretty quickly if your senses are talented enough to tell.
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What's new

We’ve made some improvements to keep the app running smoothly. Thanks for using our app!

We've redesigned the app to make it even easier and more enjoyable to use!
New features like:
- Dark and Light Mode
- Filter by wave type
- Make a favorite list
- Real time wave length graphic
- Add alternative audio engine option
- Add confirmation dialog before delete a preset
- Linear gain slider