Circa: Natural Rhythm
JULIEN DLUBALA Health & Fitness iPhoneiPadiPod touch
Circa: Natural Rhythm is a free Health & Fitness app for iPhone and iPad by JULIEN DLUBALA. Requires iOS 17.6. Updated September 2, 2026.
- Price
- Free
- on the App Store
- Size
- 55 MB
- Age 4+
- Updated
- Sep 2
- 2026 · v2.0
Screenshots
About Circa: Natural Rhythm
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 dusk to promote melatonin secretion. • Gentle Wake-Up: 30 minutes before your alarm, the screen simulates a sunrise, shifting from red to warm orange, then bright white. • High-Fidelity Soundscapes: Fall asleep to the sound of gentle rain, a crackling wood fire, or ocean waves. • OLED Safe Technology: Our "Liquid Dark" engine physically turns off black pixels. Minimal battery drain, total darkness. • One-Time Purchase (Premium): No hidden subscriptions. Unlock the full sensory experience once, for life. Respect your cycles. Wake up with CIRCA. Handcrafted with passion by KYMEA Studio.
What’s new
Version 2.0 · Updated September 2, 2026
Discover CIRCA's biggest update yet! • New collection of High-Fidelity soundscapes (Ocean, Wood Fire, Forest...). • New onboarding experience to set up your night ritual. • Introducing CIRCA Premium: Unlock the full sensory experience with a one-time payment. No subscriptions. (A huge thank you to our early adopters: if you already had the app, the Premium version is yours for free, forever!)
App privacy
The developer, JULIEN DLUBALA, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Circa: Natural Rhythm
Looking for apps like Circa: Natural Rhythm? Here are 6 similar apps on the App Store. The highest rated is Circadian Blueprint (5.0/5), and all 6 are free to download.
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Sunrise Clock: Loud Alarm
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Sunrise Alarm Clock: Wake Up
-
AcneLens: Acne Tracker
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Circadian Blueprint
5.0
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Helio: Circadian Optimizer
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Cycles of Nature
1.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Circa: Natural Rhythm | – | Free | September 2, 2026 | |
| Sunrise Clock: Loud Alarm | – | Free | May 21, 2026 | Compare |
| Sunrise Alarm Clock: Wake Up | – | Free | Oct 2, 2026 | Compare |
| AcneLens: Acne Tracker | – | Free | Oct 5, 2026 | Compare |
| Circadian Blueprint | 5.0 / 5 (1) | Free | Jun 4, 2026 | Compare |
| Helio: Circadian Optimizer | – | Free | Jul 6, 2026 | Compare |
| Cycles of Nature | 1.0 / 5 (1) | Free | Oct 5, 2026 | Compare |