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About
Track the sun and moon's celestial paths with this precision almanac. Visualize daylight, twilight, and lunar phases with AR features and a 3D globe. Offers widgets for at-a-glance information.
What's New in Solis
1.2.0
October 20, 2026
Try every feature free for 7 days, then unlock the full app with a one-time lifetime purchase. There are no subscriptions and no feature tiers.
Subscriptions & In-App Purchases
$4.99
Solis Full
Unlock seasonal Earthlight with a one-time purchase.
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FAQ
What is Solis?
Solis is a precision sun and moon almanac designed for observing natural light. It allows you to follow the Sun, Moon, twilight, seasons, and celestial paths from your iPhone.
Does Solis have ads?
No, Solis is ad-free and does not use third-party analytics. Astronomy calculations and saved locations are handled on device for enhanced privacy.
How much does Solis cost?
Solis offers a 7-day free trial of all features. After the trial, you can unlock the full app with a single one-time purchase, not a subscription.
What information does Solis provide about the sun?
Solis shows sunrise, solar noon, sunset, golden hour, civil twilight, current solar elevation, and weather context. It also visualizes the day's changing light and annual daylight rhythm.
What are the moon features in Solis?
Solis includes a monthly moon calendar with realistic illuminated phases, zodiac transitions, rise and set times, and precise lunar ephemerides.
Can I see celestial paths in real-time with Solis?
Yes, the Celestial Sky AR feature lets you open your camera to align Sun and Moon trajectories with the real sky. You can use the precision ruler to inspect celestial positions at specific times.
What devices does Solis support?
Solis is designed for iPhone and Apple Watch, offering useful solar and lunar context directly from your iPhone Home Screen via widgets.
How often is Solis updated?
The latest version of Solis is 1.2.0, which was last updated on October 20, 2026. Updates ensure the app remains reliable and features the latest astronomical data.






