Alongside its industrial work, image4D builds small software instruments: free applications, sober by design, with no ads, no accounts and no data collection. Each one does a single thing, carefully. They are our design laboratory, and our way of giving something back to the public domain they draw from.

Grain
The weather, told by literature.
Grain looks at the sky above you and finds someone in the books who has already written it: a fine drizzle by Verlaine, a storm by Shakespeare, a hard frost by Tolstoy. Over 550 excerpts chosen one by one from public domain works, from Gilgamesh to Colette, checked against reference editions. The corpus is French literature, enriched with early public domain translations; the app itself is in French.
Temps de pose
The earliest photographs, at their original speed.
Temps de pose presents thirteen historical photographs, from Niépce to 1927, which develop on screen at the true pace of their exposure time, driven by ambient light and the steadiness of your hand. An instrument for physically experiencing what taking a photograph once meant. No permissions, no network: everything happens on the device.