# Circa Accord: SleepCoach&NSDR — CircadianSleepProtocolAnalysis

> Neuro-circadian optimization system for improved sleep and energy. (iPhone/iPad app by 梦颖 徐.)

- Source: https://appshunter.io/ios/app/circa-accord-sleepcoach-and-nsdr/id6758859902 (this page in markdown: same URL + `.md`)
- Developer: [梦颖 徐](https://appshunter.io/developer/1871627145)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 26.2 · 5 MB
- Languages: English
- Released: 2026-03-03
- Data updated: 2026-07-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/circa-accord-sleepcoach-and-nsdr/id6758859902/reviews.md

## What is Circa Accord?

Stop Sleeping Randomly. Start Sleeping Scientifically.
Circa Accord is not just a sleep tracker; it is a Neuro-Circadian Optimization System designed to align your biological clock with the natural world. Based on cutting-edge neuroscience protocols, Circa Accord helps you master the hormonal timing of Cortisol and Melatonin to achieve peak energy during the day and restorative deep sleep at night.
KEY FEATURES:
 Circadian Alignment Protocol: A dynamic daily checklist anchored to your wake time. Know exactly when to view sunlight, when to hydrate, and when to cut off caffeine to prevent the "afternoon crash."
 AI Neuro-Coach: Chat with Steven (Neuro-Guide), Don (Drill Sergeant), or Linda (Wellness Guide). Our advanced AI analyzes your habits and biometrics to provide personalized, science-backed advice.
 NSDR (Non-Sleep Deep Rest): Access built-in audio tools for NSDR and Yoga Nidra. These protocols are scientifically proven to replenish dopamine and accelerate neuroplasticity.
 Red Light Mode: Protect your melatonin. The app interface automatically shifts to a monochromatic red wavelength at night to prevent screen-induced wakefulness.
 Biometric Integration: Syncs seamlessly with Apple Health (HealthKit) to track HRV, Resting Heart Rate, and Sleep Duration, giving you a daily "Readiness Score."
 Insomnia SOS: Can't sleep? Activate the SOS module for guided 4-7-8 breathing and anxiety-reducing dialogue to calm your nervous system instantly.
THE SCIENCE:
Light is the primary zeitgeber (time-giver) for the human brain. Circa Accord leverages timing—of light, temperature, and food—to anchor your circadian rhythm, ensuring you wake up alert and fall asleep effortlessly.
PRIVACY FIRST:
Your health data belongs to you. Circa Accord prioritizes local storage and on-device processing.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Circadian Alignment Protocol
- AI Neuro-Coach
- NSDR & Yoga Nidra audio tools
- Red Light Mode
- Biometric Integration (Apple Health)
- Insomnia SOS module

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Somnisleep Pro Monthly | $4.99 | per month |
| Somni Pro Yearly | $34.99 | per year |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/circa-accord-sleepcoach-and-nsdr/id6758859902/reviews.md

### 5/5 — Super scientific!

*2026-05-14*

Lots to unpack when using Circa accord. This is much more than a traditional sleep tracking app. I like how it goes a layer deeper

### 5/5 — I find the app very useful

*2026-05-14*

It has good features and the price is not expensive at all especially if you compare it with other apps. Still, it provides all the features that you need to track and improve your sleep. One thing I think needs to be improved is the network sometimes isn’t very stable.

**Developer response:** Thanks a lot for your support. We will continue to upgrade the app to optimize the users` experience.

### 5/5 — Nice app

*2026-03-04*

I've tried almost every sleep tracker out there, and Circa Accord is hands down the most professional one I've used. It goes way beyond just tracking how long you sleep—it actually dives deep into your circadian rhythm and sleep cycles. The morning reports are super easy to read, clearly breaking down my deep vs. light sleep, and it provides actionable advice based on my routine. It honestly feels like having a personal sleep coach in my pocket. Highly recommend to anyone serious about improving their sleep!

## Frequently asked questions about Circa Accord

### What is Circa Accord?

Circa Accord is a Neuro-Circadian Optimization System designed to align your biological clock with natural rhythms. It helps master hormonal timing for peak energy and restorative sleep, based on neuroscience protocols.

### How does Circa Accord help with sleep?

It provides a dynamic daily checklist for light exposure, hydration, and caffeine intake based on your wake time. The app also offers guided NSDR and Yoga Nidra sessions, and a Red Light Mode to protect melatonin.

### Does Circa Accord have ads?

No, Circa Accord does not contain advertisements. It is a free app with optional in-app purchases for enhanced features or content.

### What kind of AI coaching does Circa Accord offer?

Circa Accord features an AI Neuro-Coach named Steven, Don, or Linda. This AI analyzes your habits and biometrics to provide personalized, science-backed advice for improving sleep and energy.

### Can Circa Accord integrate with other health apps?

Yes, Circa Accord seamlessly syncs with Apple Health (HealthKit) to track HRV, Resting Heart Rate, and Sleep Duration. This data contributes to your daily 'Readiness Score'.

### What is the age rating for Circa Accord?

Circa Accord has an age rating of 17+. This is likely due to the advanced scientific concepts and potential for in-depth health data analysis.

### How often is Circa Accord updated?

The app was last updated on May 11, 2026, to version 2.13. This indicates a relatively active development cycle, with updates occurring approximately every few months.

### What devices support Circa Accord?

Circa Accord is available for iPhone and iPad. It leverages HealthKit integration, which is a feature of Apple's ecosystem.

## Version history (last 5 releases)

### 2.15 — 2026-06-19

fixed some issues

### 2.13 — 2026-05-11

Add French and German language support
Introduces French and German translations for user interface elements and backend communication, expanding multi-language capabilities.

### 1.9 — 2026-03-17

Premium Ambient Audio: We've added 8 brand-new, high-quality background tracks to the NSDR module, including soothing themes like Alpine Night Meadow, Forest Light Drifting, Star Meadow Sky, and Warm Rain.
Streamlined Experience: All premium tracks are now instantly accessible directly from the NSDR panel. We've simplified the interface so you can dive into deep relaxation without any extra steps.

### 1.8 — 2026-03-13

New Feature: Added support for "Sign in with Apple" for a faster, more secure login experience.
Bug Fixes: Resolved an issue that could cause the app to hang indefinitely during the login process.
Minor performance improvements and under-the-hood optimizations.

### 1.7 — 2026-03-05

This update includes bug fixes and performance improvements, specifically addressing login and in-app purchase processes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*