# Isochronic

> Really Easy Brain Entrainment

Canonical page: [https://chrome-stats.com/d/id604028966](https://chrome-stats.com/d/id604028966)

## Overview

- **ID:** `id604028966`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Removed
- **Publisher:** CML Studio
- **Category:** Health & Fitness
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.9
- **Last updated:** 2023-01-13
- **First published:** 2013-02-21
- **Size:** 2.71 MB
- **Data as of:** 2026-06-13
- **Store listing:** [Apple App Store](https://apps.apple.com/hk/app/isochronic/id604028966?l=en-GB)
- **Website:** [http://isochronic.co](http://isochronic.co/)
- **Privacy policy:** [http://isochronic.co/privacy-policy.html](http://isochronic.co/privacy-policy.html)

## Description

Isochronic is a simple, powerful brain entrainment tool that lets you craft precise iso­chronic tones (0.01–50 Hz) with a tunable carrier (50–999 Hz). You can mix the tone with your own music and adjust the wave volume for better blending.

Core features include adjustable carrier and target frequencies, a timer up to 59 minutes, presets for sleep, relax, awake, and meditate, and memory slots for quick access to your favorite tones. Safety note: Isochronic tones are intended for relaxation and focus and are not medical advice; consult a physician if you have concerns. Do not rely on audio entrainment in situations requiring full attention, such as driving or operating heavy machinery.

## Review summary

Users praise Isochronic for strong customization, background playback, simple UI, and a handy timer. Common drawbacks include occasional audio clicks, interruptions from notifications, imprecise slider-based frequency input, limited frequency/ramp options, and a desire for longer timers.

### Pros

- Highly customizable isochronic tones with precise frequency control, plus the ability to save four memory presets and use built-in presets.
- Background playback works well—can run alongside other apps/music and on Bluetooth speakers, not limited to headphones.
- Simple, no‑nonsense interface focused on core functionality and reliability.
- Built‑in timer and session controls for convenient duration management and use with other audio.
- Overall stability and versatility for sleep, study, meditation, and mood editing routines.

### Cons

- Audio clicks/pops can occur with certain speaker setups (hardware-dependent).
- Playback can pause when notifications arrive, disrupting entrainment sessions.
- UI/controls lack precision: sliders aren’t as exact as typed input and there’s no centralized reference for frequencies.
- Frequency range and ramp controls are limited; users want a broader spectrum and adjustable ramp/timer options.
- Some users desire longer-than-hour timers and wish for enhancements like easier frequency typing and more organized navigation.

## Similar extensions and apps

- [Isochronic Tone Generator](https://chrome-stats.com/d/id6774207589) — 5.00 / 5
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- [HemiSync](https://chrome-stats.com/d/id6751762821) — 3.90 / 5
- [Entrain: Binaural & Isochronic](https://chrome-stats.com/d/id6775068895)
- [Pilot Tone](https://chrome-stats.com/d/id6766113730)
- [Brainwave Studio](https://chrome-stats.com/d/id628372092) — 4.50 / 5
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Source: [Chrome-Stats](https://chrome-stats.com/d/id604028966)