# CIRCA: Circadian Alarm Clock — Sunrise, nature & white noise

> Sunrise, nature & white noise (iPhone/iPad app by JULIEN DLUBALA.)

- Source: https://appshunter.io/ios/app/circa-circadian-alarm-clock/id6758007213 (this page in markdown: same URL + `.md`)
- Developer: [JULIEN DLUBALA](https://appshunter.io/developer/1868793414)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 55 MB
- Languages: American English, French (France), European Spanish
- Released: 2026-02-09
- Data updated: 2026-11-13

## 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 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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| CIRCA Premium | $9.99 | one-time |


## Is CIRCA safe?

Not enough ratings yet to assess CIRCA.

## Is CIRCA legit?

CIRCA: Circadian Alarm Clock appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for CIRCA is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 2.0.1 — 2026-11-11

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).

### 2.0 — 2026-09-02

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!)

### 1.0.1 — 2026-05-29

Bug fixes and performance improvements.

### 1.0 — 2026-02-09

No release notes.

## Apps similar to CIRCA

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sunrise Clock: Loud Alarm](https://appshunter.io/ios/app/sunrise-clock-loud-alarm/id6748964906) | — | Free | Health & Fitness |
| [Sunrise Alarm Clock: Wake Up](https://appshunter.io/ios/app/sunrise-alarm-clock-wake-up/id6758740138) | — | Free | Health & Fitness |
| [Alarm Clock \| Sleep Tracker](https://appshunter.io/ios/app/alarm-clock-sleep-tracker/id6761338747) | 1.0 (1) | Free | Health & Fitness |
| [Circadian Blueprint](https://appshunter.io/ios/app/circadian-blueprint/id6775229082) | 5.0 (1) | Free | Health & Fitness |
| [Helio: Circadian Optimizer](https://appshunter.io/ios/app/helio-circadian-optimizer/id6783274315) | — | Free | Health & Fitness |
| [Morning Person](https://appshunter.io/ios/app/morning-person/id6759504448) | 5.0 (1) | Free | Health & Fitness |

## 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)
- [Emilia - Émulateur Rétro](https://appshunter.io/ios/app/emilia-emulateur-retro/id6771063453)
- [HoopIQ: Basketball Draft](https://appshunter.io/ios/app/hoopiq-basketball-draft/id6779781314)
- [Cap Côtier](https://appshunter.io/ios/app/cap-cotier/id6803983333)

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 2026-11-13.*