TrueSky, on the App Store

Weather you read from a painting

TrueSky draws the weather as a painted landscape. The hourly forecast from Open-Meteo sets the light, the clouds, the wind and the rain, and the scene plays the matching sound.

App StoreLive demo

How the scene works

Each landscape is a stack of painted layers: mountains, water, the shore, a cabin, a birch and a boat. Skia shaders light them for the hour, from first light to a quiet night with lit windows, drift the clouds with the wind and add rain, snow, fog or a storm. I kept it at 120 Hz by cutting the work done on every frame.

Try the fjord in the phone

The business side

The app is free. TrueSky Pro adds landscapes and details for 21.99 zł a month ($7.99) or 55 zł once ($19.99), sold through RevenueCat. It is translated into 32 languages and sends weather alerts in the background. It has been on the App Store since 9 October 2026.

Expo, React Native, Skia, Reanimated, RevenueCat, Playwright for the web build.

TrueSky, the meadowTrueSky, the fjord at nightTrueSky, Paris rooftopsTrueSky, the forecast details