The AR app that shows you exactly how much sun a property gets. Make your biggest investment with confidence.
$3.99 one-time purchase. No ads. No subscriptions.
Drag the slider to scrub through time
See exactly where the sun hits at any time of day, any day of the year.
Compare properties side-by-side with real sunlight data, not guesswork.
Winter sun angles differ by 47 degrees from summer. See both instantly.
Everything you need to understand sunlight exposure in a single visit.
Open the app, point your camera at the sky. The sun appears exactly where it is—or where it will be at any time you choose. No complex charts or diagrams. Just look.
Drag through time and watch the sun move. See when light floods the kitchen, when the bedroom gets morning sun, when the backyard falls into shadow.
Hold your phone at a window and Solsite automatically switches to indoor mode. See how much light penetrates, which direction you're facing, and get room-specific recommendations.
Save each property with one tap. Compare them side-by-side with objective sunlight hours. Make offers based on data, not guesswork.
Precision astronomy in your pocket. Here's the science.
Based on Jean Meeus' "Astronomical Algorithms" and NOAA Solar Calculator. The same math NASA uses, running on your phone.
GPS coordinates combined with precise compass calibration. We account for magnetic declination and device orientation.
Higher elevation means earlier sunrises and later sunsets. Solsite calculates this automatically for mountain properties.
The sun's path shifts 47 degrees between summer and winter. See any date—past, present, or future—with perfect accuracy.
Real feedback from home buyers who made smarter decisions.
"We almost bought a house with a 'sunny' kitchen. Solsite showed us it only gets 2 hours of direct light in winter. Found a better place with all-day sun. Worth every penny."
"As a realtor, I now use this with every client. It answers the #1 question buyers have about light. Professional tool, simple to use. Instant credibility."
"I have SAD and natural light is non-negotiable. Solsite let me compare apartments objectively. The one I picked has 40% more winter light. Life-changing."
"The indoor mode is genius. Walked through 6 condos and saved each room's light data. Could compare them all later that night. So much better than trying to remember."
"We're plant people. Used Solsite to check every window for our fiddle leaf figs. The new house has a perfect south-facing spot. Our plants are thriving."
"Showed my skeptical husband that the 'great view' condo faces north and never gets sun. He's now a believer. We found a place with actual sunset views."
Google Maps shows a static aerial view. It can't show you the sun's path at 7am versus 4pm, or how that changes between January and July. Solsite gives you dynamic, time-aware visualization.
We use the same astronomical algorithms as NASA. Sun position is accurate to within 0.01 degrees. Compass accuracy depends on your device, but we include celestial verification—you can calibrate using the actual sun or moon.
Yes. All calculations run on your device. No data connection needed. Perfect for remote properties or airplane mode during house tours.
Hold your phone at a window and Solsite automatically detects you're indoors. It calculates light penetration based on window orientation and gives you room-specific recommendations.
No. $3.99 once, yours forever. No ads, no tracking, no upsells. We believe tools should be tools, not services.
Sunlight affects home value, energy costs, plant growth, and your mood. Seasonal Affective Disorder affects millions. A dark home isn't just inconvenient—it impacts quality of life.
Your next property visit could be your most informed one yet.
$3.99 USD • One-time purchase