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Screenshots

  • Circa: Natural Rhythm screenshot 1
  • Circa: Natural Rhythm screenshot 2
  • Circa: Natural Rhythm screenshot 3
  • Circa: Natural Rhythm screenshot 4

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.

Circa: Natural Rhythm vs. alternatives
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Circa: Natural Rhythm – Free September 2, 2026
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Cycles of Nature 1.0 / 5 (1) Free Oct 5, 2026 Compare

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