# Solar Circadian Clock

> Solar Circadian Clock (iPhone/iPad app by Damien Devillian.)

- Source: https://appshunter.io/ios/app/solar-circadian-clock/id6739723405 (this page in markdown: same URL + `.md`)
- Developer: [Damien Devillian](https://appshunter.io/developer/1785838605)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 33 MB
- Languages: English
- Released: 2025-01-06
- Data updated: 2026-06-02
- User reviews in markdown: https://appshunter.io/ios/app/solar-circadian-clock/id6739723405/reviews.md

## What is Solar Circadian Clock?

This app provides the main Solar information and Circadian Rhythm for a location. This aims to provide you with healthy timings to sleep and wake up, as well as the ideal times for your meals, and activities, that is in sync with your natural rhythm.

What is “Circadian Rhythm”?
Circadian rhythm is your body's natural, 24-hour internal clock. It regulates a wide range of bodily functions, such as sleep-wake cycles, hormone production, and body temperature. This internal clock is primarily influenced by light exposure, with the master clock located in a tiny region of the brain. A well-functioning circadian rhythm is essential for optimal health, as disruptions can lead to various health problems.

Solar:
• Solar Midnight
• Twilight Start
• Sunrise
• Solar Noon
• Sunset
• Twilight End
• Sunlight Duration
• Daylight Duration

Sleep:
These sleep timings take into account the circadian rhythm and sleep cycles. It then works out the optimal timings to maximise rest.
• Optimal Wake Up Time
• Optimal Bedtime
• Deepest Sleep

Meals:
These meal timings take into account the circadian rhythm and the body's metabolism.
• Optimal Breakfast Time
• Optimal Lunch Time
• Optimal Dinner Time

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade | $3.99 | one-time |



## Version history (last 1 release)

### 11.04.000 — 2025-01-06

No release notes.

## Apps similar to Solar Circadian Clock

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [EvoInsight: AI Circadian Clock](https://appshunter.io/ios/app/evoinsight-ai-circadian-clock/id6651832939) | — | Free | Health & Fitness |
| [Owaves: My BodyClock](https://appshunter.io/ios/app/owaves-my-bodyclock/id869648628) | 4.6 (1,845) | Free | Health & Fitness |
| [Lifestack: AI Planner for ADHD](https://appshunter.io/ios/app/lifestack-ai-planner-for-adhd/id6473464429) | 4.4 (56) | Free | Health & Fitness |
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| [Peaks: Sleep & Energy](https://appshunter.io/ios/app/peaks-sleep-and-energy/id6446705377) | 4.7 (260) | Free | Health & Fitness |
| [Daylight Goals Sunlight Timer](https://appshunter.io/ios/app/daylight-goals-sunlight-timer/id6466341899) | 4.7 (82) | Free | Health & Fitness |

## More apps by Damien Devillian

- [Quit Smoking Progress](https://appshunter.io/ios/app/quit-smoking-progress/id6739526377)
- [Cognitive & Sleep Ultradian](https://appshunter.io/ios/app/cognitive-and-sleep-ultradian/id6740084629)
- [The Sun's Path](https://appshunter.io/ios/app/the-suns-path/id6740425028)
- [NeuroSounds](https://appshunter.io/ios/app/neurosounds/id6745166033)
- [i.Quit Smoking](https://appshunter.io/ios/app/iquit-smoking/id6751477198)

All apps by Damien Devillian: https://appshunter.io/developer/1785838605

## Related topics

[solar circadian clock](https://appshunter.io/ios/topics/solar-circadian-clock) · [circadian clock](https://appshunter.io/ios/topics/circadian-clock) · [diurna](https://appshunter.io/ios/topics/diurna) · [circadian rhythm](https://appshunter.io/ios/topics/circadian-rhythm)

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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 2026-06-02.*