# Rhythm: Better Sleep & Energy — Know your circadian body clock

> Know your circadian body clock (iPhone/iPad app by Oyu AI Inc.)

- Source: https://appshunter.io/ios/app/rhythm-better-sleep-and-energy/id6754499131 (this page in markdown: same URL + `.md`)
- Developer: [Oyu AI Inc](https://appshunter.io/developer/1820338839)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 16.1 · 54 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-10-06
- Data updated: 2026-11-05

## What is Rhythm?

Better sleep. More energy.
Do you find your energy fading late in the day, only to feel completely alert the moment you try to sleep?
This cycle happens when your daily habits and your biological clock are out of step. Rhythm shifts the focus from simply logging your sleep to actively optimizing your waking hours. Your body's timing can be naturally adjusted, and Rhythm gives you the exact blueprint to do it.
Using your actual sleep data, Rhythm builds a personalized energy curve that highlights your most productive hours and natural lulls. More importantly, it tells you how to shift your clock using the right habits at the right time—from morning light exposure and walk tracking to precise cutoffs for coffee and heavy exercise.Timely advices delivered directly to your lock screen.Take control of your rhythm and start working with your biology.

HOW RHYTHM OPTIMIZES YOUR DAY:
- Energy Forecast – Your likely peak and afternoon dip, with windows for focus and exercise, redrawn each morning. Plan with an energy curve that adapts to logged caffeine, naps, and exercise.
- Morning Light & Lux Meter –Check the light, track your walk, and build your morning routine. Don't guess if the sky is bright enough—measure it.
- Lock Screen Reminders –Key reminders such as take a morning walk, avoid caffeine, wind-down and more. Each arrives as a Live Activity banner on your Lock Screen, so you don’t have to keep them in your head.
- Caffeine Control – Know when to drink your first and last coffee for more stable energy without harming sleep.
- Smart Bedtime – A bedtime target set from your recent nights and paced toward your goal.
- Body-Clock Phases – Your circadian rhythm in phases through the day, from phase advance to phase-delay, estimated from your sleep and wake times with models from published sleep research.
- Daily Insights – Improvement suggestions based on your sleep and body data. 
- Focus Mode & App Blocker: Protect your best hours with focus timers and use the scheduled app blocker to end doomscrolling.
- Sleep & Recovery: Understand your sleep, monitor sleep debt, and see your progress over time.\
- Vitals & Workouts: Understand your body’s patterns through heart rate, blood oxygen, and more. Understand your workouts through pace, heart rate, and more.

Terms of Use: https://heyrhythm.app/terms-of-use
Privacy Policy: https://heyrhythm.app/privacy-policy

Rhythm Pro Monthly - $5.99 USD/month
Rhythm Pro Annual - $39.99 USD/year
7-day free trial for new subscribers. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your Apple ID account settings.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Rhythm Pro Annual · Launch Offer | $29.99 | per year |
| Rhythm Pro Yearly | $39.99 | per year |
| Rhythm Energy Pro Monthly | $5.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Rhythm Pro Lifetime | $119.99 | one-time |


## Is Rhythm safe?

Not enough ratings yet to assess Rhythm.

## Is Rhythm legit?

Rhythm: Better Sleep & Energy has limited verification signals. The AppsHunter Legitimacy Score for Rhythm is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.0.2 — 2026-11-03

- new promotional offer
- Live activity improvements
- Timezone change bug fix

### 1.0.1 — 2026-10-23

- minor bug fixes

### 1.0.0 — 2026-10-17

- Better liquid glass cards

### 0.9.0 — 2026-10-17

- various bug fixes for public release

### 0.0.4 — 2026-10-06

Design upgrade + algo improvments

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## More apps by Oyu AI Inc

- [Mask - Incognito AI Chat](https://appshunter.io/ios/app/mask-incognito-ai-chat/id6747236187)

All apps by Oyu AI Inc: https://appshunter.io/developer/1820338839

## Related topics

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

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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 2026-11-05.*