# Circa: Natural Rhythm — From dusk till dawn

> From dusk till dawn (iPhone/iPad app by JULIEN DLUBALA.)

- Source: https://appshunter.io/ios/app/circa-natural-rhythm/id6758007213 (this page in markdown: same URL + `.md`)
- Developer: [JULIEN DLUBALA](https://appshunter.io/developer/1868793414)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 6 MB
- Languages: English
- Released: 2026-02-09
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/circa-natural-rhythm/id6758007213/reviews.md

## What is Circa?

Discover CIRCA, the biological alarm clock designed to respect your natural rhythm.

Unlike standard alarms that shock you awake, CIRCA transforms your nightstand into a beautiful dawn and dusk simulator.

KEY FEATURES:
• Natural Sleep Onset: A deep red light mimics the sunset to promote melatonin secretion, helping you fall asleep naturally.
• Gentle Wake Up: 30 minutes before your alarm, the screen gradually shifts from deep red to warm orange, then to bright white, signaling your body it's time to rise.
• OLED Safe Technology: Our "Liquid Dark" engine physically turns off black pixels during the night. Minimal power consumption, total darkness.
• Pure Interface: No distractions, no ads. Just the essentials for a peaceful night.

Respect your cycles. Wake up with CIRCA.

Handcrafted with passion by KYMEA Studio.


## Version history (last 2 releases)

### 1.0.1 — 2026-05-29

Bug fixes and performance improvements.

### 1.0 — 2026-02-09

No release notes.

## More apps by JULIEN DLUBALA

- [Cross 5](https://appshunter.io/ios/app/cross-5/id6757764004)
- [TypeFast: Typing Race](https://appshunter.io/ios/app/typefast-typing-race/id6757876174)

All apps by JULIEN DLUBALA: https://appshunter.io/developer/1868793414

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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 2026-06-01.*