20 lock screen widgets • 15 home screen widgets • Apple Watch App with 100s of Complications • Create alerts for 24 solar & lunar events such as sunrise, sunset, dawn, dusk, and moonset
Sundial 101Sundial provides a one-of-a-kind display of the sun and moon rise/set cycle over the 24 hour day. As the seasons change, the yellow “sun is out” arc informs you of the precious daylight hours: shrinking during winter months and expanding as summer approaches. The white inner arc represents when the moon is visible in the sky. Civil, nautical, and astronomical twilights are shown on the solar dial in shades of blue.
Lock Screen Widgets
Put Sundial's advanced sun and moon tracking on your lock screen. There are 20 unique widgets, all of which are configurable. Requires iPhone running iOS16. Learn more.
Home Screen Widgets
Sundial on your home screen! There are 15 fun widgets, most of which are configurable.
Apple Watch App & Complications
The Sundial Watch app gives you access to all of Sundial's solar and lunar data to go, calculated on your wrist without use of cellular Data or your iPhone.
Customize what solar and lunar data to display with Sundial Watch's swipable and configurable widgets. 3 widgets are loaded to start. Add more by swiping up. Move and rearange to customize Sundial Watch to suit your needs.
There are hundreds of different complication options, including Sundial's unique time rise/set dials.
For example, on the Infograph watch faces you can add sunrise/sunset time or countdown, civil dawn/dusk time or countdown, nautical dawn/dusk time or countdown, astronomical dawn/dusk time or countdown, moonrise/set time or countdown, moon phase, lunar illumination, and sun or moon altitude and azimuth. Geek out solar and lunar data lovers!!
A fan of Infograph corner complications? Sundial has you covered, with ridiculous flexibility. A small sampling of options:
Sundial's Infograph Bezel complication supports configuration of both what to report on — sunrise/solar noon/sunset, civil dawn/dusk, moonrise/moonset, etc. — as well as the inner circular complication. Modular complications show recent and upcoming solar or lunar rise/peak/set.
watchOS 7 required. Supported on Apple Watch Series 3/4/5/6/7/8, Apple Watch SE, and Apple Watch Ultra.
Alerts: From the Every Day to Life Critical
Create iOS notifications for 24 solar and lunar events:
- Sunrise, solar mid-morning, solar noon, solar mid-afternoon, sunset, and solar midnight
- Civil twilight (dawn/dusk), nautical twilight, and astronomical twilight
- Moonrise, lunar noon, moonset, and lunar midnight
- Moon phases: full moon, new moon, first quarter moon, and last quarter moon
- Astronomical seasons: March equinox, June solstice, September equinox, and December solstice
Sundial users have found uses for alerts I could never imagine. Here are some of my favorite:
- A blind user is reminded to turn on the outside lights near dusk
- A parent gets the kids inside before dark during the quickly changing winter months
- A jogger times her morning run to perfect light, starting the day right
- An astrophotographer uses Sundial to plan the perfect shot
- A farmer uses Sundial to let her hens in and out of their pen around twilight, and grab a good night's sleep herself at the end of nautical twilight
- A surfer has his sunset "catch a wave" reminders
- An Ashtanga yoga practitioner is reminded to take rest before the new moon and full moon
- A Buddhist monk is notified on the sunset two days before the full moon to shave his head the next morning
- A photophobia sufferer sets an alarm 30 minutes before sunset to head home for the day because driving at night is impossible
Travel to Any Time & Location
You can travel to any date and custom location with Premium in-app purchase, making Sundial an handy tool when planning a vacation or outdoor activity. And time travel is just plain fun: swipe around the dials to move forward and backward, or long press on the left or right side of the screen to experience the changing seasons at warp speed.
Pricing & In-App Purchases
|Free||The core iPhone and iPad app is free to use. Display the the solar and lunar cycle in Sundial's unique 24-hour ring. Times for today's sunrise, lunar noon, sunset, moonrise, lunar noon, and moonset are calculated on your device. Time travel to review times for up to ±7 days.|
A one time purchase of Sundial Extras unlocks extended features in the Sundial iPad and iPhone app:
Sundial Extras also unlocks:
You can try above free for 3 days, after which you can choose to purchase Sundial Extras via on-time purchase, or continue to use the free features. Sundial Extras is not a subscription and you will never be charged without your consent.
Use of Location Services
Sundial requests your location while using the app to calculate solar and lunar times based on your location. If you enable an alert (notification), it will further request your location "Always" (in the background). This is requested to ensure any solar or lunar alerts that are scheduled use an accurate location if you travel several miles or kilometers from where you last launched the app. For example, if you travel to a new city, Sundial will be notified of your location change in the background and will reschedule alerts based on your new location. Watch complications will also be more up-to-date in this mode.
Sundial uses a location mode that uses very little power: it only requests to be notified when a significant location change occurs (via geofencing). For example, you travel a few miles/kilometers. If you go to the Battery settings on your iPhone or iPad, Sundial may not even show up in the list unless you use the time display and keep it open often. Getting occasional location updates and scheduling any enabled alerts just won't use much if any battery life.
About the Developer & Contact Information
Howdy! I'm Mike Muegel, the author of Sundial. I'm an software engineer living in Austin, Texas. Please don't hesitate to contact me if you would like more information about Sundial.
Press? Checkout the Sundial press kit and screenshots.