Circadian AI Sleep & Rhythm
Sunlight, Energy & Body Clock
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Circadian AI reads your body clock — not your data.
It turns your Apple Health sleep and your local sunrise into a personal circadian phase, then builds one simple daily plan: when to get morning light, cut caffeine, eat, do NSDR, and wind down for sleep.
Your daily plan is free. Everything runs 100% on your iPhone. No account. Works offline — nothing about your health ever leaves your phone.
FREE, ALWAYS
• Your personal circadian phase, recalculated every day
• Morning light window — when to step outside for the biggest shift
• Caffeine cut-off — timed to protect tonight's sleep
• Meal & movement timing aligned to your rhythm
• NSDR / wind-down prompts to help you downshift in the evening
• Chronotype-aware — early bird or night owl, the plan adapts
• Today's full protocol timeline and tomorrow's preview
• The onboarding questionnaire and the plan it produces
CIRCADIAN AI PLUS
• Insights (Plus) — multi-night correlations between your rhythm sync and your HRV and sleep efficiency, plus your weekly adherence history
• Background reminders (Plus) — protocol nudges delivered while the app is closed. The plan itself is always on screen for free; only proactive delivery is part of Plus.
WORKS WITH APPLE HEALTH
Connect Sleep and Heart Rate data (optional) and Circadian AI does the rest — reading trends on-device to fine-tune your timing every day.
WHO IT'S FOR
• Anyone rebuilding a sleep schedule or fixing a late body clock
• Shift workers, travelers, and students out of sync
• Longevity and morning-routine fans who want signal, not noise
PRIVATE BY DESIGN
No email. No cloud profile. No tracking. You can use the full daily plan without handing your data to anyone.
Circadian AI is built on published circadian-science principles. It is not medical advice and does not diagnose or treat any condition. Consult a healthcare professional about sleep or health concerns.
MEMBERSHIP
Circadian AI Plus is an optional subscription: a weekly plan with a 3-day free trial, and an annual plan. The daily protocol is free and does not require a subscription. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://bgmobiledev.com/privacy-policy
Support: https://bgmobiledev.com/support
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Your daily plan is now free.
You no longer need a subscription to see your circadian phase or follow your protocol — the morning light window, caffeine cut-off, meal timing, NSDR and wind-down are all free, every day.
Circadian AI Plus now covers Insights (multi-night HRV and sleep-efficiency correlations plus your adherence history) and background reminders. This release also fixes several controls that did not respond, and corrects the subscription details shown in Settings.
The developer, Burak Guner, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Burak Guner
- Size
- 3.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Plan $49.99
- Weekly Plan $3.99
- Copyright
- © Burak Guner