calibratr

Your photos, the way you edited them. Out of the box, a monitor rarely shows what is in the file: too cool, too blue, with greys that drift in the shadows. Anyone who edits photos then corrects faults that are not in the picture at all. calibratr turns your iPhone into a measuring instrument for displays and makes your monitor trustworthy again. Together with the free Mac app it calibrates your monitor. The Mac shows colour patches, the iPhone measures them in RAW: no image processing, no white balance, fixed exposure. The result is an ICC colour profile for exactly that display. White point, grey balance and tone curves are corrected, and the verification patches show in ΔE how well it went. HOW IT WORKS • Open the Mac app and choose “Start calibration” • Scan the QR code on the screen with the iPhone. Both devices on the same Wi‑Fi, everything stays on the local network • Hold the…