Best Circadian Clock Apps

201+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated July 2026

From beginner-friendly picks to power-user tools, our circadian clock list covers 201+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Circadian Clock

2.3😞(250 ratings)
Free
myCircadianClock screenshot 1
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This app aids research studies by tracking diet, exercise, and sleep patterns to understand their impact on health. It allows users to log food intake, sleep times, physical activity, and health metrics, with medication reminders and HealthKit integration.

What We Love

  • πŸš€ Easy to use
  • πŸ’‘ Contributes to research
  • πŸ‘ Helpful for tracking health
  • πŸš€ Simple and effective

Room to Improve

  • πŸ› Buggy and glitchy
  • πŸ› Crashes frequently
  • πŸ› Data loss issues
Circadian: Your Natural Rhythm#2

Circadian: Your Natural Rhythm by Circadian Limited

Wellness & health cycles clock
Strong Contender
πŸ’ͺ Health & Fitness
4.6😊(659 ratings)
FreeIn-App Purchases
Circadian: Your Natural Rhythm screenshot 1
Circadian: Your Natural Rhythm screenshot 2
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Circadian: Your Natural Rhythm screenshot 4
Circadian: Your Natural Rhythm screenshot 5
Circadian: Your Natural Rhythm screenshot 6

Optimize your daily activities by syncing with natural rhythms. This app helps you wake, eat, move, work, and rest at optimal times for improved energy, clarity, and sleep. It leverages sunlight, seasons, and scientific principles to guide your lifestyle for better health.

What We Love

  • πŸ‘ Easy to use
  • πŸ’‘ Informative and educational
  • πŸš€ Helpful reminders and notifications
  • 🌞 Supports circadian rhythm and natural lifestyle

Room to Improve

  • πŸ› Crashes and bugs
  • πŸ•°οΈ Inaccurate timing and location tracking
  • πŸ’° Expensive subscription model

More Circadian Clock apps to explore

4
Circadian Rhythm: Body Clock
Circadian Rhythm: Body Clock
Circadian Rhythm: Body Clock
Sleep Tracker & Energy Booster
Free

Align your daily routines with your body's natural biological clock. Gain personalized insights to improve sleep, boost energy, and enhance focus by understanding your circadian rhythm. Optimize your day with alerts for hormone peaks and sunlight guidance.

Circadian Rhythm TrackingSleep Insights & TrendsHormone Peak Information
πŸ’ͺ Health & Fitness
(7)
free with in-app purchases
5
The Analog Clock
The Analog Clock
The Analog Clock
Simple Analog Clock
Free

This app displays a customizable analog clock on your entire screen. Personalize background and theme colors, and choose between numbers or Roman numerals for the dial. A premium plan unlocks all designs and advanced customization options.

Full-screen analog clock displayAd-free clock viewingLandscape orientation support
πŸ”§ Utilities
(2.1K)
freemium
6
My Digital Clock
My Digital Clock
My Digital Clock
Stylish Clock with Themes
Free

Personalize your time with a clean and elegant digital clock. Choose from multiple themes, fonts, and activate night mode for a comfortable display. Optimized for performance and a distraction-free experience.

Multiple clock themesCustom font selectionNight mode support
πŸ”§ Utilities
(7.5K)
free with in-app purchases
7
Clock – Simple & Customizable
Clock – Simple & Customizable
Clock – Simple & Customizable
A minimalistic 24h clock app
Free

This app displays the time with a minimalistic design, utilizing the full screen. It offers extensive customization for time format, including 12/24 hour, leading zeros, and seconds precision. Screen brightness can be adjusted by swiping, and screen dimming can be prevented.

Full-screen displayCustomizable time format (12/24hr, seconds)Adjustable screen brightness
πŸ”§ Utilities
(117)
free
8
Flip clock - no ads
Flip clock - no ads
Flip clock - no ads
Digital Clock&Nightstand clock
Free

A digital clock app featuring a unique page-turning animation and customizable backgrounds. It includes white noise sounds, hourly chimes, and a timer for enhanced functionality. Personalize your display with various skins, colors, and animations.

Page-turning digital clock animation123 White Noise SoundsCustomizable skins and colors
🌟 Lifestyle
(4.1K)
subscription
9
DClock - Digital Flip Clock
DClock - Digital Flip Clock
DClock - Digital Flip Clock
Time Widgets & Floating Clock
Free

This app provides a visually appealing digital flip clock with a minimalist design and customizable themes. It offers useful widgets for your home screen, a floating clock option, and integrated tools like a Pomodoro timer and white noise generator to aid focus. It can also display health data like step count.

Minimalist flip clock designiOS 14 widgetsCustomizable clock themes
πŸ” Reference
(7.6K)
free with in-app purchases
10
ClockPhone big digital clocks
ClockPhone big digital clocks
ClockPhone big digital clocks
Alarm clock, timer, widget
Free

This app offers a stylish and functional digital clock with advanced alarm and timer features. Customize its appearance, set flexible alarms with unique dismissal methods, and utilize versatile timers for workouts or productivity.

Advanced alarm with flexible repeatsUnique alarm dismissal methods (NFC, QR, math)Versatile timer for workouts and productivity
🌟 Lifestyle
(28K)
free with in-app purchases
11
RISE: Sleep Tracker
RISE: Sleep Tracker
RISE: Sleep Tracker
Better Health, Focus & Habits
Free

This app helps you improve sleep and energy levels by tracking sleep debt and circadian rhythms. It offers personalized recommendations, guided meditations, and smart alarms based on sleep science.

Sleep debt calculationEnergy level trackingCircadian rhythm insights
πŸ’ͺ Health & Fitness
(61K)
free with in-app purchases
12
Nite Time - a simple night clock for your nightstand with flashlight
Nite Time - a simple night clock for your nightstand with flashlight
Nite Time - a simple night clock for your nightstand with flashlight
by Nick Fanger
Free

A minimalist bedside clock with large, easy-to-read digits designed for low-light conditions. Customize displayed information and brightness. Offers optional upgrades for additional colors and a flashlight feature.

Large, clear digitsLandscape and portrait orientationAdjustable brightness
πŸ”§ Utilities
(262)
free with in-app purchases
13
My Circadian
My Circadian
My Circadian
by Jake Adams
Free

Optimize your light exposure and sleep schedule for better circadian health. This tool provides personalized intervals to help you maintain a regular sleep-wake cycle and manage light exposure, crucial for overall well-being.

Personalized light exposure intervalsOptimized sleep schedule guidanceCircadian rhythm tracking
πŸ’ͺ Health & Fitness
(1)
free
14
BodyClock - Circadian Rhythm
BodyClock - Circadian Rhythm
BodyClock - Circadian Rhythm
Heart, Sleep Tracker for Watch
Free

This app analyzes your health data to predict your optimal circadian rhythm for daily activities. It monitors sleep, heart health, stress, and more, offering personalized advice to enhance energy and well-being. Integrates with Apple Watch and Apple Health for comprehensive tracking.

Circadian rhythm predictionSleep and napping monitoringHeart health and stress tracking
πŸ’ͺ Health & Fitness
(0)
free with in-app purchases
15
Atomic Clock (Gorgy Timing)
Atomic Clock (Gorgy Timing)
Atomic Clock (Gorgy Timing)
The classic par excellence
$1.99

This app provides ultra-precise time by syncing with atomic time servers. It features a customizable display mimicking professional studio clocks, with advanced alarm functions and various visual themes. Designed for accuracy and usability, it's ideal for professionals and enthusiasts alike.

Syncs with atomic time serversProfessional studio clock displayCustomizable alarm with snooze
πŸ”§ Utilities
(4.8K)
free with in-app purchases
16
World Clock – Time Zones
World Clock – Time Zones
World Clock – Time Zones
Times around the globe
Free

View current times for over 5000 cities worldwide. Organize your favorite locations for quick access and receive automatic updates for daylight saving and time zone changes. Customize your clock display with various designs and formats.

5000+ cities worldwideFavorite locations managementAutomatic DST and time zone updates
πŸ“Š Productivity
(75)
free with in-app purchases
17
Altametrics Clock
Altametrics Clock
Altametrics Clock
by Altametrics Inc
Free

This app streamlines employee timekeeping and labor management. It prevents costly labor law violations by alerting managers to potential issues and optimizes scheduling with sales forecasts. Employees can clock in from any web-enabled device, ensuring efficient shift changes.

Real-time punch addition/maintenanceLabor law violation alertsWeb-enabled device clock-in
πŸ’Ό Business
(479)
free
18
Sleep Time: Cycle Alarm Clock
Sleep Time: Cycle Alarm Clock
Sleep Time: Cycle Alarm Clock
Dream, Bedtime, & Nap Tracker
Free

This app helps you fall asleep, stay asleep, and wake up refreshed with advanced sleep cycle analysis and a smart alarm. It offers detailed sleep tracking, soundscapes, and integration with Apple Health.

Smart alarm clock with single gesture settingSleep cycle analysisSoundscapes and white noise for falling asleep
πŸ’ͺ Health & Fitness
(5.4K)
freemium
19
Timeshifter
Timeshifter
Timeshifter
The Jet Lag App
Free

This app provides personalized plans to combat jet lag based on circadian science. It offers practical advice for light exposure and avoidance to help you adjust to new time zones quickly and reduce symptoms like insomnia and sleepiness.

Personalized jet lag plansCircadian Timeβ„’ advicePracticality Filterβ„’
✈️ Travel
(2.5K)
free with in-app purchases
20
Bedtime Clock - No Fuss
Bedtime Clock - No Fuss
Bedtime Clock - No Fuss
No ads, no personal data
Free

A minimalist bedside clock designed for nighttime use. It features a large, easily visible display that prevents your device from sleeping and offers simple controls for brightness, color, and font. The app prioritizes privacy by not collecting personal data or requiring internet access.

Large, visible time displayAdjustable brightnessCustomizable color
πŸ”§ Utilities
(42)
paid

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