Lustre: Foldable Light Studio

Lustre reads the light in your room and tells you what to change. The front camera shows your reflection and the screen lights your face — and the app compares the two, so you are not guessing whether the light is right. IT READS YOUR ROOM Lustre looks at the colour of the light around you and names the preset that matches it — "This room looks like Daylight — you're set" — or suggests a switch when another preset fits better. If you turn it on in Settings, it also tells you when one side of your face is in shadow. These are suggestions, not measurements: they are worked out on your iPhone and never stored. BUILT FOR IPHONE DUO Held open wide, or propped half-open on a table, Lustre puts the mirror on one side of the fold and the controls on the other, so your hands never cross your own reflection. On every other iPhone, and on Duo's outer screen, it works the way it always has. Requires iOS 27.1 on iPhone Duo. LIGHT FOR EVERY ROOM Built-in presets: Daylight, Evening, Office and Golden Hour. Max turns the whole screen into a light aimed at your face. Set warmth and brightness by hand on the dial, and save the settings you keep coming back to as your own presets. A MIRROR FOR DETAIL Pinch to zoom. Freeze the picture to study a detail, and turn on the symmetry grid when brows and liner need to match. The shutter is always within reach, and photos go to your own library. 14 DAYS FREE, THEN ONE PURCHASE For your first 14 days you have all of Lustre. After that the mirror, the light and the Daylight preset stay free forever. The dial, the other presets, your own presets, the layouts — including the iPhone Duo layout — photos and the lighting hints are unlocked by a single one-time purchase, "Lustre — full version". No subscription, and nothing is charged when the trial ends. PRIVATE BY DESIGN No account, no ads, no analytics, no tracking. Your camera image never leaves your iPhone. Lustre never reads your photo library — it only adds the photos you take. Warmth in Kelvin describes how the light looks, not a calibrated measurement — screens differ.