Frequently Asked Questions
Everything you need to know about Coffee in the Sun.
What is Coffee in the Sun?
Coffee in the Sun is an iOS app that shows real-time building shadows on a live map, helping you find sunny terraces, cafés, and restaurants. It uses real building geometry and precise solar position calculations to accurately show where the sun is shining and where the shade falls.
How does the shadow tracking work?
The app uses real building data including building heights and footprints, combined with precise sun position calculations. This data is used to simulate realistic 3D building shadows in real time on the map, showing you exactly where sunlight hits and where shade falls.
Is Coffee in the Sun free?
Coffee in the Sun is free to download and use with basic features. A Pro upgrade is available that unlocks unlimited features including time travel to check future sun positions, advanced venue filters, detailed weather forecasts, and more.
Which cities and countries does it work in?
Coffee in the Sun works worldwide! The app can calculate and display building shadows in cities and towns across the globe. It works best in areas with detailed building data, which covers most of Europe, North America, and major cities globally.
Can I check the sun for a future date and time?
Yes! The Time Travel feature lets you check sun and shadow positions for any date and time — past or future. Plan your coffee date, lunch meeting, or outdoor event by seeing exactly where the sun will be at that moment.
How accurate are the building shadows?
The shadows are highly accurate because they're based on real building geometry and precise astronomical sun position calculations. Accuracy depends on the quality of building data in your area — in well-mapped cities, the shadows closely match reality.
What languages is the app available in?
Coffee in the Sun is available in 34 languages including English, Dutch, German, French, Spanish, Italian, Portuguese, Japanese, Korean, Chinese (Simplified and Traditional), Arabic, Hindi, and many more.
How do I save my favorite sunny spots?
Simply tap on any location on the map and use the save/bookmark button to add it to your favorites. You can then quickly jump back to your saved sunny spots anytime from the favorites screen.
