The 'Knives Out' Look, in Your Pocket: Hollywood's Color Nerd Bottles It for iPhone

The 'Knives Out' Look, in Your Pocket: Hollywood's Color Nerd Bottles It for iPhone

A camera app built by the 'Knives Out' team

Chromagraph Camera is an iPhone still-photo app built by cinematographer Steve Yedlin with director Rian Johnson and programmer Eric Cameron. It starts from raw sensor data and renders the picture with the custom color math Yedlin uses on their films, replacing Apple's default processing rather than layering a filter on top. The team says they built it for themselves first, testing it internally for months, then put it on the App Store.

Not a filter, a different pipeline from the sensor up

The central claim, repeated by Yedlin on social media and by Johnson on X, is that Chromagraph skips the iPhone's look processing entirely. A filter sits on finished pixels; this app starts earlier, from RAW, and builds tone, color, and grain its own way, tuned to Apple camera behavior. Early users describe the results as darker, warmer, and less digitally sharpened than the stock camera app.

Shoot blind, then watch the photo develop

Like a film camera, the viewfinder does not show the finished look. You frame, shoot, and the image is developed in the app a moment later, after which exposure and texture can be tweaked. Photos export as JPEG or HEIC, or auto-export to the photo library. Yedlin told WIRED he is not trying to replace the iPhone camera or ship a pro editing tool: it is a curated app that takes pictures the way they like.

A $12.99 one-time buy that topped the charts overnight

The app costs $12.99 in the US as a one-time purchase, with no subscription and no in-app purchases, and its listing says it collects no data. It costs €14.99 in France and ¥2,000 in Japan. It requires iOS 17 or later. It went live quietly around October 20, and after Johnson promoted it on X on October 28, it climbed to No. 1 among paid apps and in Photo and Video on the US App Store within about a day. The pair previously shot features including Brick, Looper, Star Wars: The Last Jedi, Knives Out, and Glass Onion.

No video yet, and no Android version planned

For now it is stills only. Johnson said video may come later, possibly limited to recent iPhone Pro models, and ruled out Android, saying the hardware variety is too wide for a small team to tune. Yedlin is blunt about the phone's limits: it cannot really be controlled like a professional camera, so the app's rendering is deliberately opinionated. The WIRED interview sums up his view: the color speaks for itself.