Sunlitt for Architecture

Design with sunlight.

Plan light, shade, and solar behavior — right from the first sketch.

Natural light isn’t just aesthetic — it shapes how spaces feel, function, and evolve over time.


From orientation to shading, solar exposure is at the core of thoughtful architecture. Sunlitt helps you anticipate light, plan around it, and design with it from the earliest sketches to the final presentation.


Whether you’re mapping out a single-family home or developing an urban block, understanding solar behavior early on leads to better decisions later. Sunlitt brings those insights right into your process.

Every project is different, but sunlight is always a variable.


Whether you’re designing for comfort, sustainability, or regulation, Sunlitt gives you tools to understand how light interacts with your design — not just on paper, but on-site.


Let’s walk through how Sunlitt works for architects and studios, and where it can make a difference.

Planning

Understand sun angles early

Plan orientation, shading, and openings

Check daylight access by season

Support climate-conscious design decisions

Workflow

Augmented Reality for quick site checks

Preview any location remotely

Share visuals with clients and teams

Speed up early design decisions

See the sun’s path in 3D

Get a real sense of time, light, and elevation as you visualize the sun’s movement in 3D over standard maps, satellite imagery, terrain, dynamic shadow maps, and a smooth gradient that mimics the sky. It’s a complete, intuitive overview of how sunlight behaves and how it shapes your site.

Visualize the Sun’s Path in Augmented Reality

Sometimes sketches and diagrams fall short. With Sunlitt’s AR mode, you can use your iPhone or iPad to see the sun’s path projected directly onto your site. Walk the space and watch how light moves through it minute by minute, season by season. It’s an intuitive way to study solar exposure, support zoning discussions, or make your vision clearer during client walkthroughs.

Analyze sites remotely, even before you visit

No need to scout in person every time. Drop a pin anywhere on the map, and Sunlitt shows you how light and shadow will move across that exact location. Preview solar angles, elevation, shadow lengths and much more for any date and time. It's a reliable way to evaluate lots or validate assumptions before stepping on site.

Measure Real Shadow Lengths and Orientations

Sunlight changes constantly, and so do shadows. Sunlitt shows you how they’ll fall across your site, helping you refine rooflines, arcades, or public spaces. Whether you're checking if a bench stays shaded or how long a facade is exposed, you can test scenarios and plan confidently — no guesswork, no surprises.

Works Offline in Remote Sites

Many construction sites and plots don’t have reliable signal. With full offline support, Sunlitt stays fully functional wherever you are. Using GPS, it provides sun paths, angles, and shadow behavior even without internet—so you’re always equipped, even on remote locations.

Useful, and actually fun to use!

Designers care about design. Sunlitt gives you precise sun paths and shadow data, wrapped in an interface that’s smooth, colorful, and genuinely enjoyable to use. It’s built to support focused work—without ever feeling heavy. Because useful tools should feel good, too.

Trusted by Design Professionals worldwide.

Sunlitt is already part of the workflow for thousands of architecture professionals: from solo practitioners to large firms. Whether it's designing passive strategies, meeting daylighting targets, or understanding how a site evolves through the year, Sunlitt helps architects make informed and climate-aware decisions.


Here’s what some of them say:

Laura R.
ARCHITECTURE STUDIO

“We started using Sunlitt during early concept phases, and it quickly became part of our workflow. It helps us align on solar exposure, test ideas on the spot, and share quick visuals with clients or consultants. It’s clear, fast, and easy for the whole team to use.”

Laura R.
ARCHITECTURE STUDIO

“We started using Sunlitt during early concept phases, and it quickly became part of our workflow. It helps us align on solar exposure, test ideas on the spot, and share quick visuals with clients or consultants. It’s clear, fast, and easy for the whole team to use.”

Dylan T.
ARCHITECT

“I use Sunlitt on nearly every project to cross-check how the facade will be hit by sun across seasons. Especially during client presentations, it helps back up our decisions visually. Honestly, the AR feature saves me from having to explain a diagram no one wants to read.”

Dylan T.
ARCHITECT

“I use Sunlitt on nearly every project to cross-check how the facade will be hit by sun across seasons. Especially during client presentations, it helps back up our decisions visually. Honestly, the AR feature saves me from having to explain a diagram no one wants to read.”

Nadia F.
UNIVERSITY LECTURER

“I bring it to site visits with students. There’s always that moment when they realize how much the sun changes the space and Sunlitt makes it visible. It’s a great teaching tool, but I also use it on my own projects to double-check assumptions.”

Nadia F.
UNIVERSITY LECTURER

“I bring it to site visits with students. There’s always that moment when they realize how much the sun changes the space and Sunlitt makes it visible. It’s a great teaching tool, but I also use it on my own projects to double-check assumptions.”

Omar L.
ARCHITECT

“I use it constantly when reviewing site proposals or running feasibility checks. Being able to test orientation and sunlight within minutes saves time, especially when you’re juggling multiple sites.”

Omar L.
ARCHITECT

“I use it constantly when reviewing site proposals or running feasibility checks. Being able to test orientation and sunlight within minutes saves time, especially when you’re juggling multiple sites.”

Built for creatives. Highlighted by Apple.

Sunlitt wasn’t just made with creatives in mind — it’s been recognized for it.


In 2024, Sunlitt was a finalist for the Apple Design Awards, spotlighted for its clear, seamless design across iPhone, iPad, Mac, Apple Watch, and Vision Pro.

It’s also been featured in App Store collections like “Apps We Love” and “Helpful Tools”, and was named App of the Day in over 170 countries.

Apple Design Award

FINALIST 2024

Apple Of The Day

APP STORE

Helpful Tools

Ultimate

Photo & Video Toolkit

BY APPLE

Sunlitt

Design starts with light.

Sunlitt helps you shape the space with confidence—from the first sketch to the final detail.

Discover what’s possible with Sunlitt

People all over the world use Sunlitt in creative — and unexpected — ways.

From photographers and cinematographers planning shoots with precision, to casual picnickers looking for the perfect sunny spot, Sunlitt is being used in ways we didn’t even imagine.

Explore some of the most common and surprising ways people are using Sunlitt to work with light:

Camping

Choose the best campsite by understanding sun exposure and shadow patterns, enhancing comfort and safety.

Archeology

Study ancient sites by understanding historical sunlight patterns and shadow effects.

Solar Panels

Optimize solar panel placement with precise sun path data and AR shadow visualization.

Hiking

Plan your hikes with accurate sun event timings to enjoy the best daylight and avoid harsh sun exposure.

Cinematography

Plan film shoots with precise sun path data to achieve desired lighting conditions and enhance visual storytelling.

House Seeking

Check the sun's path and shadow map to reveal the sunlight exposure of your next apartment.

Beekeeping

Place your beehives in optimal sunlight-and-shadow exposure.

Gardening

Plan plant placement by tracking sun exposure and visualizing shadows to ensure optimal sunlight for healthy growth.

Sunset Spotting

Discover the best locations and times for witnessing stunning skies with accurate sunset position.

Camping

Choose the best campsite by understanding sun exposure and shadow patterns, enhancing comfort and safety.

Archeology

Study ancient sites by understanding historical sunlight patterns and shadow effects.

Solar Panels

Optimize solar panel placement with precise sun path data and AR shadow visualization.

Hiking

Plan your hikes with accurate sun event timings to enjoy the best daylight and avoid harsh sun exposure.

Cinematography

Plan film shoots with precise sun path data to achieve desired lighting conditions and enhance visual storytelling.

House Seeking

Check the sun's path and shadow map to reveal the sunlight exposure of your next apartment.

Beekeeping

Place your beehives in optimal sunlight-and-shadow exposure.

Gardening

Plan plant placement by tracking sun exposure and visualizing shadows to ensure optimal sunlight for healthy growth.

Sunset Spotting

Discover the best locations and times for witnessing stunning skies with accurate sunset position.

Camping

Choose the best campsite by understanding sun exposure and shadow patterns, enhancing comfort and safety.

Archeology

Study ancient sites by understanding historical sunlight patterns and shadow effects.

Solar Panels

Optimize solar panel placement with precise sun path data and AR shadow visualization.

Hiking

Plan your hikes with accurate sun event timings to enjoy the best daylight and avoid harsh sun exposure.

Cinematography

Plan film shoots with precise sun path data to achieve desired lighting conditions and enhance visual storytelling.

House Seeking

Check the sun's path and shadow map to reveal the sunlight exposure of your next apartment.

Beekeeping

Place your beehives in optimal sunlight-and-shadow exposure.

Gardening

Plan plant placement by tracking sun exposure and visualizing shadows to ensure optimal sunlight for healthy growth.

Sunset Spotting

Discover the best locations and times for witnessing stunning skies with accurate sunset position.

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