Shoot round videos and photos, like video messages, with soft screen light around your face.
Not sure where the light should go? Take a photo: Lux reads where your light comes from and explains, step by step in plain words, where to put each phone.
One tap turns the screen into that light, with the right color and brightness.
ROUND VIDEOS AND PHOTOS IN THE SELFIE MIRROR
• Switch on Round: the mirror becomes a circle with a ring of screen light around it.
• Round videos run up to 1 minute. Lux saves a square 720×720 clip with the circle on black, mirrored like the preview.
• Round photos are saved as PNG with a transparent background, so you can send them like a sticker.
• Switch between a circle and a normal frame in one tap. Normal videos run up to 3 minutes.
• Save to Photos or share right away.
LIGHTING COACH: WHERE SHOULD THE LIGHT GO?
Take a photo of yourself from where the camera will stand. Lux reads the light and shadow on your face: which side the light comes from, how deep the shadows are, and whether a window or a bright light is beside or behind you.
• Numbered lights right on your photo, plus a top view with the angle, distance and height of each one.
• "How to set up the light — step by step": no jargon, just which phone goes where, how high, how far and how bright. No second phone? A white sheet of paper will do.
• "Turn this screen into light N" makes your device that light, with the right color and brightness.
• For vlogs, interviews, portraits and product shots. The full breakdown waits under "More detail for pros".
AI RIGHT ON YOUR DEVICE
On iPhone and iPad with at least 8 GB of RAM, a built-in AI model (the open Qwen3.5-2B) also tells a window from a lamp, in about 10–30 seconds per photo. No internet, no account, and your photos never leave the device. On other devices the coach still reads the light from your photo, just without this extra step.
WHY LUX IS ABOUT 1.8 GB
Almost all of it, about 1.75 GB (roughly 98%), is the built-in AI model; Lux itself is only about 25 MB. The model lives inside the app so it can work offline and never send your photos anywhere. It used to be a separate download that failed for many people; now it simply comes with Lux. The download is about 1.5 GB, so Wi-Fi is the easiest way to install.
LIGHTING STUDIO
• Softbox with color temperature and brightness, color gradients and a ring light.
• Light shapes: window, strips, two colors.
• Cinema effects: candle, TV glow, storm, passing car.
• Light painting, saved light scenes and a timer.
• A palette from any photo.
• Remote: control nearby iPhones and iPads running Lux over your local network with a pairing code.
THE TOOLS YOU KNOW
Color wheel and HEX, favorite colors, nearest RAL Classic color, a night light with a sleep timer, ambient light, strobe, an approximate light meter and a camera eyedropper. Nine interface languages.
PRIVACY
No account, ads, analytics or tracking. Photos and their analysis stay on your device, and you decide what to save or share. The remote sends light settings only.
Lighting plans and light-meter readings are approximate and depend on the device and scene: Lux is not a calibrated instrument. RAL matching is a reference; screen colors may differ from paint samples. Flashing effects may affect people with photosensitivity: read the in-app notice before turning them on.
Show more
