# Circa Accord: SleepCoach NSDR — Circadian Coach, Insomnia SOS.

> 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-nsdr/id6758859902 (this page in markdown: same URL + `.md`)
- Developer: [梦颖 徐](https://appshunter.io/developer/1871627145)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 17.6 · 9 MB
- Languages: American English
- Released: 2026-03-03
- Data updated: 2026-09-12
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/circa-accord-sleepcoach-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-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)

### 2.16 — 2026-09-11

Circa Accord now works on your wrist.

APPLE WATCH APP
• Your day's protocol, on your watch. The ring shows how much you've
  completed; the card above it shows the one thing to do next, and when.
• Mark a step done with one tap. Taps made away from your phone are
  delivered as soon as it's back in range — nothing is lost.
• Talk to your coach. Ask a question out loud and hear the answer read back.
• Log your wake time with a single "I'm awake".

YOUR FULL SLEEP HISTORY
• Circa Accord now reads your complete Apple Health record instead of the
  last two weeks. Your trends go back as far as your data does.
• Wake and bedtimes come straight from your Apple Watch's sleep tracking,
  so there's nothing to type in. Times you've entered yourself are always
  kept — a measurement never overwrites your own answer.
• Your sleep regularity is ready on your first sync, rather than after two
  weeks of manual logging.

FIXES AND POLISH
• The app opens on your dashboard instead of asking you to pick your coach
  every time.
• Close the app part-way through the assessment and you'll pick up exactly
  where you left off.
• Spanish, French and German are now fully translated.
• Your companion appears reliably on a slow connection.
• New users no longer meet an error message on their first analysis.

### 2.15 — 2026-06-19

fixed some issues

### 2.14 — 2026-06-06

Update the Dynamic Island display.

### 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.

### 2.12 — 2026-04-22

New NSDR Preview

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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 2026-09-12.*