# Meridian: Circadian Body Clock — Ancient rhythm·One-time buy

> Ancient rhythm·One-time buy (iPhone/iPad app by 振峰 曹.)

- Source: https://appshunter.io/ios/app/meridian-circadian-body-clock/id6805501938 (this page in markdown: same URL + `.md`)
- Developer: [振峰 曹](https://appshunter.io/developer/1841535657)
- Category: Health & Fitness, Lifestyle
- Price: $2.99 (on sale, was $4.99)
- Age rating: 4+
- Requires: iOS 15.0 · 56 MB
- Languages: American English
- Released: 2026-09-07
- Data updated: 2026-10-29

## What is Meridian?

Your body has a natural rhythm. Meridian shows it to you.

The 2,000-year-old circadian clock from the Huangdi Neijing, on your phone.
One-time purchase. No subscription. No account. No cloud.

Meridian divides your day into twelve two-hour "hours" — each governed by a
different organ system, each with clear "good for" and "avoid" guidance. It's
the ancient precursor to modern circadian science, turned into a simple daily
tool that keeps you in tune with your own biology.

WHY MERIDIAN

• Know your natural schedule — Twelve two-hour windows tell you the best time
  to sleep, focus, eat, exercise and wind down. Stop guessing; your body
  already has a plan.

• Voice reminders that teach — At each hour, Meridian speaks the guidance
  aloud: what your body is best at, what to avoid. It repeats the rhythm
  gently until you know it by heart — not nagging, but teaching.

• Check-ins & rhythm tracking — Log your day hour by hour and watch your
  7 / 14 / 30-day rhythm on a simple dashboard.

• Works with your schedule — A time-offset slides the whole clock to match
  your real day. Night shift? Late chronotype? Shift the hours to fit you,
  not a one-size-fits-all 9-to-5.

• Share your schedule — Generate a beautiful personalized schedule poster and
  share it in one tap.

PRIVATE BY DESIGN

No account. No cloud sync. No tracking. No analytics. No ads. Your plans and
check-ins never leave your phone.

ONE-TIME PURCHASE

Pay once, own it forever. No subscription, no in-app purchases, no hidden fees.
No "free trial" that quietly becomes a yearly charge. One price, yours forever.

DISCLAIMER

Meridian provides general wellness guidance based on traditional Chinese
medicine. It is not medical advice and is not intended to diagnose, treat,
cure, or prevent any condition. Consult a healthcare professional for medical
concerns.

END USER LICENSE AGREEMENT(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Is Meridian safe?

Not enough ratings yet to assess Meridian.

## Is Meridian legit?

Meridian: Circadian Body Clock has limited verification signals. The AppsHunter Legitimacy Score for Meridian is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-09-15

Added an in-app review prompt — rate Meridian and share your feedback right from Settings.

### 1.0 — 2026-09-08

No release notes.

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## More apps by 振峰 曹

- [PixBox – Photo File Manager](https://appshunter.io/ios/app/pixbox-photo-file-manager/id6802656206)

All apps by 振峰 曹: https://appshunter.io/developer/1841535657

## Related topics

[circadian ai sleep & rhythm](https://appshunter.io/ios/topics/circadian-ai-sleep-rhythm) · [circadian ai](https://appshunter.io/ios/topics/circadian-ai)

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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 2026-10-29.*