---
title: "Isochronic - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The Isochronic Tone Generator does just what it says: You can create any Isochronic Tone (between 0.01 and 50Hz) with a carrier between 50 and 999Hz.   You can also mix the tone with your own music, s"
---

# Isochronic — United States
> Really Easy Brain Entrainment

![Isochronic App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/22/3b/b9/223bb99a-c146-49c7-810f-2827320231df/AppIcon-0-0-1x_U007emarketing-0-0-0-7-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png)

**Developer:** [Carlos Mauricio López Londoño](https://apptail.io/developer/carlos-mauricio-lopez-londono-GwAb)
**Category:** Health Fitness
**Rating:** 4.8/5 (66 ratings)
**Price:** Free
**Bundle ID:** com.cmlstudio.Isochronic
**Store:** Apple App Store
**Country:** United States
**Version:** 1.9 (released 2023-01-13)
**Original Release:** 2013-02-21
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id604028966)
**AppTail Page:** [https://apptail.io/app/isochronic-XOtd/united-states](https://apptail.io/app/isochronic-XOtd/united-states)

## Isochronic Description
The Isochronic Tone Generator does just what it says: You can create any Isochronic Tone (between 0.01 and 50Hz) with a carrier between 50 and 999Hz. 

You can also mix the tone with your own music, set the wave volume in the mix, set a timer (up to 59 mins), program target isochronic frequencies for your brain entrainment sessions, use presets to start easy entrainment sessions and memory slots to put your favorite tones.

As simple as it gets... Enjoy!

FEATURES:
=======

* Variable carrier tone
* Variable isochronic tone
* Fine tune for carrier, isochronic and target frequencies
* Mix the tone with your own music
* Wave volume for better mixing
* Timer (up to 59 minutes)
* Entrainment sessions: Just set the target frequency using the black indicator below the isochronic tone.
* Presets (sleep, relax, awake and meditate)
* Memory slots: for having your favorite tones one tap away

------------------------

Isochronic tones are regular beats of a single tone used for brainwave entrainment. Similar to monaural beats, the interference pattern that produces the beat is outside the brain so headphones are not required for entrainment to be effective. They differ from monaural beats, which are constant sine wave pulses rather than entirely separate pulses of a single tone. As the contrast between noise and silence is more pronounced than the constant pulses of monaural beats, the stimulus is stronger and has a greater effect on brain entrainment (taken from: 

-------------------------

Isochronic beats are not intended to treat or cure any disease, nor should any of the subject matter presented on this app or website be taken as medical advice. Please consult your doctor if you have a medical condition.
The products on this website have not been evaluated by the Food and Drug Administration (FDA).
People with epilepsy should not use mind entrainment products without the approval of an appropriate medical physician. However rare, there is a risk of seizure associated with individuals who are predisposed to seizures. Consult your doctor directly if you have any questions or concerns regarding Isochronic beat technology's effect on epilepsy.
Do not drive a car or operate dangerous machinery while listening to this product. This technology can produce hyper-relaxed states that can interfere with your ability to react as needed while driving or operating machinery.
There are no known contraindications to medication or chemical therapies, but if in doubt, consult your doctor. If you have any questions consult the doctor who provides your treatment.

## Isochronic Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/03/d6/0d/03d60d21-4c38-4a23-0130-d675c9090acc/mzl.woerbvrl.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/f3/0c/02/f30c022b-5876-b6f5-ecfb-9a206a5466b5/mzl.hrwgryml.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/b0/6b/6b/b06b6bb3-ec59-f207-408a-ac8e148bc87f/mzl.fcddargq.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/51/91/1f/51911f58-c18d-7d26-502d-f4d6f606dd7c/mzl.qsmwkajz.png/640x960.png)

## Isochronic Rating Breakdown in United States
- 5 stars: 56 (85%)
- 4 stars: 9 (14%)
- 3 stars: 1 (2%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Isochronic Reviews in United States

### ***-- "Clicking Effect in Speakers"
The app seems to produce a “clicking” effect when run through a good set of powered speakers. The clicking effect stops when run at the same time as another app that is simultaneously playing music.
-- Bassman 5000, 2025-11-09

### ***** "Awesome app"
Hi! I love everything about this app. Thank you for creating it!! 

One request: is it possible to extend the timer? I want to be able to play the sound for more than an hour. Thank you!
-- peasblossoms, 2025-05-09

### ***** "Simple and excellent"
Delivers custom isochronic tones
-- Mad_reviews, 2024-12-24

### ****- "Useful, besides random pausing"
The tone will pause randomly when I receive a notification. Besides that, I enjoy the app and the UI
-- pogmuffin, 2024-11-23

### ***** "Exactly it + nothing more = AWESOME"
Isochronic tones with a simple Interface — that’s it.  You can layer other apps over this one for any effect you want . . . and the isochronics are already handled.
-- SuperNinjaMama, 2024-08-30

### ***** "Use it for focus and sleep"
Whenever I need to hunker down and get work done, I start this app along with some background music and—idk if it’s the placebo effect or what—I can get stuff done so efficiently. Same with sleep. I listen to a podcast before bed and have this on in the background and I can feel myself being slowly lulled.
-- Stardelice, 2024-07-12

### ***** "it works with media!"
i really wanted to play isochronic tones over other media like music or youtube, but for the most part ios doesn’t really allow that. i’m thrilled to find that this app works in the background! i would like to be able to change the amount of time over which the tones ramp to the target frequency since it currently happens very quickly and i don’t find that very useful, and if we could tell it to play x frequency for y minutes followed by x frequency for y minutes with multiple sections it would be really cool for all sorts of stuff like falling asleep or getting started in a project.
-- Tyramos, 2023-12-26

### ****- "Simple and effective tool"
This is a very simple and useful tool for entrainment. I used it to experiment with my meditation and inducing faster deeper entry into meditative state. It worked for me. I’m going to try it for others things now ( studying, staying alert, etc). The one thing I wish the app would do is gradually ramp down volume as it reaches the time to stop versus a hard stop as it does now. Overall, the app is well done. Thank you.
-- Archerbb, 2023-12-06

### ****- "Good simple app"
I like the quick sliders on the front end, I would give 5 stars if I could type the desired frequencies rather than scroll to them
-- 1stworldorca, 2023-07-14

### ***** "Love this. Totally worth the price"
Looking for something just like this.
-- Nowhere Ma’am, 2023-06-21

### ***** "Yes!"
Not gonna lie, I thought binaural beats were cool and then I discovered Isochronic tones and it changed everything
-- Jaxx Staxx95$, 2023-05-15

### ***** "Great app"
Only isochronic app out there that’s any good. Love it goes so high and low on the Hz spectrum.
-- Nick_007, 2022-04-30

### ***** "Just what I wanted!"
If you use isochronic tones this app is a must! Great customizability, does exactly what I wanted it to & more. I don’t usually spend money on apps but I’m happy I took the chance with this one.
-- jscott168, 2022-04-18

### ***** "So. Simple."
Amazing! Only one thing I wish to see added though, and that’s a timer for the duration of going from one frequency to another. Currently, the only timer is for the duration of a session.
-- jtharry2, 2021-10-06

### ***** "Great and simple app for brain hacking!"
I’ve been using and making binaural beats, then Isochronic tones for my own personal research/curiosity for years and wished there was a simple app that did just this. Thanks for making this tool! It’s so stable and I love that it can play while other sounds are going . 

Could I request the carrier frequency range be increased to 20khz? Higher 12-14khz sounds are very nice on the ears with gamma brain waves in the 40-55hz range.
-- J Rice Music, 2021-07-03

### ****- "Great"
Lost my ambuscience 100. So glad to find this. Would like to have a little wider range of freqs, like for intuition. Really like that it will play with my music, has timer. Thank you. Worth the $5 to me.
-- Akitaguy58, 2021-06-21

### ***** "Basically basic, yet ..."
Basically basic, yet it works well.  Excellently solid with great potential for improving.
-- SolaceSoundMedicineMan, 2020-10-07

### ****- "Awesome flexibility"
I bought this app to use with a Bluetooth speaker, since most binaural beats require headphones to be effective. The sliders allow you to set the exact frequencies you want, which gives you much more flexibility compared to some of the pre-made audio tracks available. And there are 4 memory buttons that you can use to save the specific frequencies if you find a combination that is particularly effective for you, as well as 4 built-in frequency presets to get you started. And the built-in timer is also incredibly convenient!

The functionality of the app is perfect, and the only reason I didn’t rate it 5 stars was for minor issues with the interface. Because the main controls are sliders, there not 100% accurate. But clicking on the arrows doesn’t change the value of the slider, but takes you to a different page with a picker control. This page is also where the specific information about the different frequencies is located, but it would be nice if there was a centralized location where you could read up on all the different types of frequencies and their benefits. 

Basically things are a bit spread out, and for a paid app, I’d expect things to be a bit more organized. Other than that, it works great!
-- Tony Pieper, 2020-07-05

### ***** "thank you for the new features"
i just wanna say thank you to the developers of this app. the number one feature is that it stays on in the background meaning you can listen to what ever music track you like through your streaming service and still have the app running. they just added meditation and sleep patterns that randomly change around a frequency meaning your brain never figures out. thus your entrainment sessions will continue to be effective each time you use the app. thank you thank you thank you ♾🙏
-- xyto.skincare, 2019-06-17

### ***** "Awesome app, easy to use."
I use isochronic tones primarily as a sleep aid. With only a couple of exceptions, I have used this app every night (60 days) since It was downloaded.  I set it to 8hz and use the auto shut off timers (20 minutes) and I’m out for the night.
-- db592, 2019-06-16

[View all Isochronic reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Isochronic Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Hong Kong SAR China | Health Fitness | #2 |
| Top Paid | Hong Kong SAR China | Overall | #17 |
| Top Paid | India | Health Fitness | #18 |
| Top Paid | United States | Health Fitness | #104 |
| Top Paid | Colombia | Health Fitness | #183 |
| Top Paid | South Korea | Health Fitness | #232 |
| Top Paid | Vietnam | Health Fitness | #260 |
| Top Paid | Nigeria | Health Fitness | #264 |
| Top Paid | Taiwan | Health Fitness | #275 |
| Top Paid | Ecuador | Health Fitness | #282 |
| Top Paid | Pakistan | Health Fitness | #302 |
| Top Paid | Thailand | Health Fitness | #319 |
| Top Paid | Japan | Health Fitness | #327 |
| Top Paid | Chile | Health Fitness | #351 |
| Top Paid | Indonesia | Health Fitness | #353 |
| Top Paid | South Africa | Health Fitness | #358 |
| Top Paid | Brazil | Health Fitness | #359 |
| Top Paid | India | Overall | #369 |
| Top Paid | Türkiye | Health Fitness | #370 |
| Top Paid | Lebanon | Health Fitness | #376 |
| Top Paid | Argentina | Health Fitness | #424 |
| Top Paid | Russia | Health Fitness | #437 |
| Top Paid | Australia | Health Fitness | #446 |
| Top Paid | Malaysia | Health Fitness | #448 |
| Top Paid | Mexico | Health Fitness | #449 |
| Top Paid | Ukraine | Health Fitness | #453 |
| Top Paid | Philippines | Health Fitness | #466 |
| Top Paid | United Kingdom | Health Fitness | #478 |
| Top Paid | Saudi Arabia | Health Fitness | #484 |

## Isochronic Discovered Keywords
- isochronic

## Apps Similar to Isochronic
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- [Delta Waves+ Sleep Now](https://apptail.io/app/delta-waves-sleep-now-Ztg/united-states)
- [Mind Monitor](https://apptail.io/app/mind-monitor-NOg/united-states)
- [iTorus](https://apptail.io/app/itorus-DsBb/united-states)
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- [Binaural Beats - Brain Waves](https://apptail.io/app/binaural-beats-brain-waves-Rric/united-states)
- [Binaural Beats Machine](https://apptail.io/app/binaural-beats-machine-Qomc/united-states)
- [BrainWave: Neuro Trainer ™](https://apptail.io/app/brainwave-neuro-trainer-DRqd/united-states)
- [TonePlayer](https://apptail.io/app/toneplayer-FZxl/united-states)
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## Isochronic Available In
- [United States](https://apptail.io/app/isochronic-XOtd/united-states)
- [Australia](https://apptail.io/app/isochronic-XOtd/australia)
- [Canada](https://apptail.io/app/isochronic-XOtd/canada)
- [Japan](https://apptail.io/app/isochronic-XOtd/japan)
- [United Kingdom](https://apptail.io/app/isochronic-XOtd/united-kingdom)
- [Taiwan](https://apptail.io/app/isochronic-XOtd/taiwan)
- [Switzerland](https://apptail.io/app/isochronic-XOtd/switzerland)
- [Colombia](https://apptail.io/app/isochronic-XOtd/colombia)
- [Russia](https://apptail.io/app/isochronic-XOtd/russia)
- [Brazil](https://apptail.io/app/isochronic-XOtd/brazil)
- [Mexico](https://apptail.io/app/isochronic-XOtd/mexico)
- [South Korea](https://apptail.io/app/isochronic-XOtd/south-korea)
- [Indonesia](https://apptail.io/app/isochronic-XOtd/indonesia)
- [Kazakhstan](https://apptail.io/app/isochronic-XOtd/kazakhstan)
- [Lebanon](https://apptail.io/app/isochronic-XOtd/lebanon)
- [Malaysia](https://apptail.io/app/isochronic-XOtd/malaysia)
- [Nigeria](https://apptail.io/app/isochronic-XOtd/nigeria)
- [Norway](https://apptail.io/app/isochronic-XOtd/norway)
- [New Zealand](https://apptail.io/app/isochronic-XOtd/new-zealand)
- [Peru](https://apptail.io/app/isochronic-XOtd/peru)
- [Philippines](https://apptail.io/app/isochronic-XOtd/philippines)
- [Pakistan](https://apptail.io/app/isochronic-XOtd/pakistan)
- [Saudi Arabia](https://apptail.io/app/isochronic-XOtd/saudi-arabia)
- [Singapore](https://apptail.io/app/isochronic-XOtd/singapore)
- [Thailand](https://apptail.io/app/isochronic-XOtd/thailand)
- [Türkiye](https://apptail.io/app/isochronic-XOtd/turkey)
- [Ukraine](https://apptail.io/app/isochronic-XOtd/ukraine)
- [Vietnam](https://apptail.io/app/isochronic-XOtd/vietnam)
- [United Arab Emirates](https://apptail.io/app/isochronic-XOtd/united-arab-emirates)
- [South Africa](https://apptail.io/app/isochronic-XOtd/south-africa)
- [Argentina](https://apptail.io/app/isochronic-XOtd/argentina)
- [Azerbaijan](https://apptail.io/app/isochronic-XOtd/azerbaijan)
- [Belarus](https://apptail.io/app/isochronic-XOtd/belarus)
- [Chile](https://apptail.io/app/isochronic-XOtd/chile)
- [China](https://apptail.io/app/isochronic-XOtd/china)
- [Dominican Republic](https://apptail.io/app/isochronic-XOtd/dominican-republic)
- [Algeria](https://apptail.io/app/isochronic-XOtd/algeria)
- [Ecuador](https://apptail.io/app/isochronic-XOtd/ecuador)
- [Egypt](https://apptail.io/app/isochronic-XOtd/egypt)
- [Israel](https://apptail.io/app/isochronic-XOtd/israel)
- [India](https://apptail.io/app/isochronic-XOtd/india)
- [Kuwait](https://apptail.io/app/isochronic-XOtd/kuwait)

---

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