Circadian Alarm: Wake Up Early
Sleep Cycle Tracker & Sounds
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Circadian is an alarm clock designed to help you wake up on time and feel good doing it.
Hate your mornings? It's not a willpower problem. It's a system problem. Circadian uses proven techniques to get you up and feeling your best:
- We don't let you snooze: Snoozing disrupts your body's natural clock, so your alarm won't stop till you prove you're up with a photo.
- Alarm sounds designed for how you want to feel: Choose from modes for calm, energy, alertness or focus.
- A personalised sleep plan: Get your body clock back in sync with nudges on your optimal bedtime, smart alarm timing and adjustments that suit your lifestyle.
Better mornings start here. Try it free!
Terms of Use: https://www.circadianalarm.com/terms
Privacy Policy: https://www.circadianalarm.com/privacy
Ratings & Reviews
We've made Circadian even better with general improvements to the core alarm system.
The developer, Moment Apps Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Moment Apps Ltd
- Size
- 58 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Circadian Yearly $29.99
- Circadian Monthly $4.99
- Copyright
- © 2026 Moment Apps