Best Solar Circadian Clock Apps

207+ iOS apps curated and reviewed

4.7 avg rating
16 free apps
Updated May 2026

Solar Circadian Clock is the household name in solar circadian clock, but it's far from the only option. We track 207+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Solar Circadian Clock

Sol: Sun Clock#2

Sol: Sun Clock by Juggleware, LLC

Daylight Forecaster & Alarm
Strong Contender
☀️ Weather
4.8😊(869 ratings)
$4.99
#33in Weather
Sol: Sun Clock screenshot 1
Sol: Sun Clock screenshot 2
Sol: Sun Clock screenshot 3
Sol: Sun Clock screenshot 4
Sol: Sun Clock screenshot 5
Sol: Sun Clock screenshot 6

Forecast sunrise, sunset, and twilight times for any location and date. Set smart alarms that adjust with the seasons and receive detailed solar almanac information. Plan your day around natural light, perfect for photography, outdoor activities, or maintaining sleep cycles.

What We Love

  • 👍 Simple and intuitive interface
  • 🚀 Accurate and reliable information
  • 💡 Useful for photographers, hikers, and outdoor enthusiasts
  • 🌅 Helps users stay in tune with natural light cycles

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔋 Alarms don't work when device is muted
  • 🌙 Lack of moon phase information
Circadian: Your Natural Rhythm#3

Circadian: Your Natural Rhythm by Circadian Limited

Wellness & health cycles clock
Worth Considering
💪 Health & Fitness
4.6😊(659 ratings)
FreeIn-App Purchases
Circadian: Your Natural Rhythm screenshot 1
Circadian: Your Natural Rhythm screenshot 2
Circadian: Your Natural Rhythm screenshot 3
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

  • 👍 Easy to use
  • 💡 Informative and educational
  • 🚀 Helpful reminders and notifications
  • 🌞 Supports circadian rhythm and natural lifestyle

Room to Improve

  • 🐛 Crashes and bugs
  • 🕰️ Inaccurate timing and location tracking
  • 💰 Expensive subscription model

More Solar Circadian Clock apps to explore

4
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
🔧 Utilities
(7.5K)
free with in-app purchases
5
Sunset Prediction SolarWatch
Sunset Prediction SolarWatch
Sunset Prediction SolarWatch
Sunrise Alarm Clock Widget
Free

Plan outdoor activities and photography sessions with precise sunrise, sunset, and twilight times. Utilize AR mode and map overlays to find optimal lighting, and set customizable alarms for key solar events. Widgets provide at-a-glance information for seamless integration into your day.

Accurate sun-trackingAR mode and map overlaysCustomizable solar alarms
📷 Photo & Video
(5.8K)
free with in-app purchases
6
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
🔧 Utilities
(4.8K)
free with in-app purchases
7
Sundial Solar & Lunar Time
Sundial Solar & Lunar Time
Sundial Solar & Lunar Time
Sunrise sunset widget alarm
Free

This app provides detailed information about the sun and moon's cycles, including sunrise, sunset, and twilight times. It offers customizable alerts for various solar and lunar events and features a time travel function to view past and future celestial positions. Widgets and an Apple Watch app offer convenient access to this data.

Sunrise/sunset cycle displayTwilight time trackingCustomizable event alerts
☀️ Weather
(4.5K)
free with in-app purchases
8
Daylight - Solar Clock
Daylight - Solar Clock
Daylight - Solar Clock
Keep Track Of Daylight
Free

This app helps you monitor the amount of daylight remaining in your day. It provides sunrise and sunset times, along with the total duration of daylight for any given day.

Track remaining daylightView sunrise timesView sunset times
☀️ Weather
(17)
free
9
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
🔧 Utilities
(262)
free with in-app purchases
10
Sun Seeker - Sunlight Tracker
Sun Seeker - Sunlight Tracker
Sun Seeker - Sunlight Tracker
Sunrise Sunset Times, Daylight
$11.99
$12.99 | 8% OFF

Track the sun's hourly direction, path, and times for sunrise, sunset, and twilight. Visualize solar data with a compass or AR view, and receive notifications for key solar events. Ideal for planning outdoor activities, photography, and property assessment.

Hourly sun direction intervalsSunrise, sunset, and twilight timesGolden hour and blue hour visualization
🗺️ Navigation
(13K)
ad-supported
11
Astrolabe Clock
Astrolabe Clock
Astrolabe Clock
by Michael Smith
Free

This app offers a modern interpretation of an ancient astronomical instrument, providing a real-time view of the sky. It displays the time of day, day of the year, and the positions of celestial bodies like the Sun, Moon, planets, and stars. Users can also track sunrise/sunset times, moon phases, and celestial transits.

Real-time sky viewTime of day and day of year displaySun, Moon, planet, and star locations
🔍 Reference
(48)
free
12
Sunrise Sunset Times
Sunrise Sunset Times
Sunrise Sunset Times
Local Sun Rise and Set Time
Free

Get precise sunrise and sunset times for your exact location, not just the nearest city. Track daylight remaining, plan for dawn and twilight, and view future astronomical events. Supports multiple timezones and offers widgets for easy access.

Precise sunrise and sunset timesFirst and last light times (dawn/twilight)Daylight remaining countdown
☀️ Weather
(19K)
free with in-app purchases
13
Sunrun
Sunrun
Sunrun
Power Your Future
Free

Monitor your solar energy system, track energy production, and access support. Gain insights into your environmental impact and manage your system data from a single, user-friendly interface.

System data managementEnergy production trackingCustomer support access
🔧 Utilities
(2.6K)
free
14
Clock Seconds
Clock Seconds
Clock Seconds
Largest Clock with seconds
Free

A highly accurate and customizable digital clock that fills your screen. Offers adjustable colors, sizes, and 12/24 hour formats. Designed for minimal battery usage.

Largest digital clock displayAccurate atomic time comparisonCustomizable colors and dimensions
🔧 Utilities
(4)
free with in-app purchases
15
Skylight - Solar Widgets
Skylight - Solar Widgets
Skylight - Solar Widgets
Enjoy more sunlight
Free
$2.99 | 100% OFF

This app helps you experience more sunlight by creating routines around sunrise, solar noon, and sunset. It provides visual displays and notifications for sun events, helping you adjust your daily life for better well-being and photography.

Sunrise and sunset routinesSolar noon remindersGolden Hour alerts
☀️ Weather
(91)
paid
16
DayTime
DayTime
DayTime
A sun and moon alarm clock
Free

This app brings sundial functionality to your device, calculating sun and moon positions, daylight length, and sunrise/sunset times based on your location. Plan outdoor activities, vacations, or simply stay informed about celestial events with detailed tracking and optional alarms.

Sunrise and sunset time displayDaylight length calculationMoonrise and moonset tracking
🔧 Utilities
(150)
free with in-app purchases
17
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
💪 Health & Fitness
(1)
free
18
Sunrise Alarm Clock  -
Sunrise Alarm Clock  -
Sunrise Alarm Clock -
Wake up at sunrise
Free

This app helps you synchronize your sleep schedule with natural light cycles. It offers a free option to wake up at sunrise and a pro version with advanced features like custom times, snooze, and personalized sounds.

Wake up at sunriseWake up at custom timesSnooze functionality
💪 Health & Fitness
(29)
freemium
19
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
💪 Health & Fitness
(7)
free with in-app purchases
20
LCD Clock - Clock & Calendar
LCD Clock - Clock & Calendar
LCD Clock - Clock & Calendar
Clock & Calendar
$1.99

Transform your device into a stylish digital clock and calendar. It offers a clean, minimal display perfect for any room, with features like international holidays and weather forecasts. Enhance your daily visibility and convenience with this multifunctional utility.

Digital LCD-style clock displayIntegrated calendar viewInternational holiday display
🔧 Utilities
(12)
free with in-app purchases