Cozy Shelter: a window onto the weather.

Solo: design and engineering. 2026, iPhone (iOS 17 and later).

Cozy Shelter's welcome screen: a pine shelter with rain on the window and the Step inside button

Rain on the glass roof, with the listening controls docked at the bottom

The quiet room with the controls hidden, only the lantern and the weather outside

The problem

Shelter is one small illustrated shelter whose sound and scenery follow the real weather somewhere you choose: a city, or a place you name, like “Mum in Lisbon”.

The decisions

A local Swift audio module under Expo and React Native: the mix is shaped natively, playback survives a locked screen, and the sleep timer uses an absolute deadline that fades to silence.
Apple Weather's latest reading drives the scene; only the chosen place's coordinates are sent, and “Your own weather” works fully offline.
No account, ads, analytics or tracking. The artwork is original; the sound is mixed from public-domain (CC0) field recordings.

Out in the world

On the App Store as “Cozy Shelter”. Canvas, glass and metal roofs with their own rain textures, Home and Lock Screen widgets, saved rooms.

App Store

Built with

Expo, React Native, TypeScript, Swift (native audio module), WeatherKit.

Twenty minutes, whenever suits you. Stamp the card