Twinkle Clock
Hiroyasu Hirai
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About this app
Twinkle Clock turns your screen into a night sky — a clock face made of twinkling stars and constellations. FREE • 12 zodiac constellations, swipe to switch • A twinkling starfield with the time overlaid on constellation lines PRO (one-time purchase) • All 88 official constellations • ~8,900 naked-eye stars across the whole sky • The Milky Way and the Moon & planets (Mercury–Saturn) • Nebulae, star clusters, and galaxies • Tap any star, the Moon, or a planet to read about it • Time Travel — pick any date and time to see what the sky looked like (or will look like) • Major meteor shower activity windows Available on iPhone, iPad, Mac, Apple TV, and Apple Vision Pro.
What's new
Version 3.0.1 · Oct 26, 2026
Added support for iPhone Duo. The night sky now fills the full unfolded display. Also fixed an issue where the purchase screen couldn't be closed.
In-app purchases
The most popular purchases on the App Store.
- Twinkle Clock ProConsumable$34.99