Explore the sky with your phone — anywhere, anytime.

Sky Across is a lightweight, real-time stargazing tool that transforms your phone into an augmented reality star map. Just hold your iPhone towards the sky, and stars, constellations, and celestial patterns will appear on your screen.

Whether you’re observing out in the field or right at home, Sky Across makes exploring the night sky effortless.

Discover the night sky through diverse cultural perspectives — displaying constellations and star names from different traditions side by side, in any languages of your choice.

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Key Features:

AR Star Map
- Point your phone to the sky to see real-time overlays of stars and constellations with accurate positioning.

Constellations Across Cultures
- Explore how different civilizations view the night sky. Compare constellation patterns worldwide.

Sky Culture Comparison
- See star names in different cultures — with dual-language display side-by-side. Supports multiple translations for each sky culture.

Offline and Outdoor Friendly
- No internet? No problem. Sky Across works offline, perfect for outdoor trips.

Night Mode & Simple Interface
- Clean, minimal design with a dark theme to protect your night vision.

Lightweight and Fast
- Optimized for smooth performance on many devices without draining your battery.

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Currently version supports sky cultures:
Modern (IAU) • Chinese • Greek • Arabic • Babylonian • Egyptian • Maya • Romanian • Belarusian

Currently version supports each sky culture in languages:
English • Chinese(Simplified) • French • Japanese • Korean • German • Spanish • Italian • Russian

Currently version supports UI interface in languages:
English • Chinese(Simplified) • Chinese(Traditional) • French • Japanese • Korean • German • Spanish • Italian • Russian