CIRCA: Circadian Alarm Clock

CIRCA: Circadian Alarm Clock

Sunrise, nature & white noise

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Free
In-App Purchases

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Details

Released
February 9, 2026
Updated
November 11, 2026

Features

CIRCA: Circadian Alarm Clock screenshot #1 for iPhone
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About

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.
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What's New in CIRCA

2.0.1

November 11, 2026

CIRCA levels up with the major 2.0 update! The Premium Collection: Dive into our new high-fidelity soundscapes. Fall asleep to a crackling campfire, soft rain, or the soothing rhythm of ocean waves. Liquid Dark Engine (OLED Safe): A completely redesigned and optimized interface that physically turns off black pixels. Your battery and OLED screen are protected all night long. One-Time Purchase (No Subscription): Upgrade to Premium through a single, lifetime in-app purchase to unlock the entire soundscape collection. Loyalty Gift: Already had CIRCA 1.0? To thank you for your support since day one, the Premium version is yours forever, for free! (Access unlocks automatically upon launch).

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Subscriptions & In-App Purchases

$9.99

CIRCA Premium

Unlock all premium soundscapes.

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