
CIRCA: Circadian Alarm Clock
Sunrise, nature & white noise
About
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).
MoreSubscriptions & In-App Purchases
$9.99
CIRCA Premium
Unlock all premium soundscapes.





