iScan, retired from the app

Since August 31, 2026, iScan is no longer reachable in Calibration Flow. If you're looking for the button or screen that used to carry that name, it's gone from the app's normal flow — the decision is made, it won't come back.

#What iScan did

iScan measured the tint drift between a reference target and your print of the same target, from a single photo of the two side by side. You'd load the photo, align a grid of patches on each target, the app would compute a tint profile — a confidence score plus a per-channel deviation table, ΔH (hue) and ΔE (overall) — then you'd apply that profile to your images. It corrected color, not contrast or density: that stayed the job of the black-and-white calibration curve. It was built for colour Aquaprint and colour Charbon; a monochrome process had no use for it.

#What to use instead today

Nothing today does exactly what iScan did: automatic photo-based tint-drift measurement disappeared with it. For color, here's what's left in the app and on the site:

• The Color Venn target, generated free on the site — see the page, generated at /en/tools/color-venn-cmyk. Three overlapping Cyan, Magenta, Yellow circles: you print it, expose it on your paper, and compare the seven zones by eye. There's no automatic scan-based measurement.
• The Separation screen, in the app (Separation button in the main menu). It simulates print rendering layer by layer — Cyan, Magenta, Yellow, Black, plus Orange, Green, Violet in Full Gamut — from an image you import. It's a visual decision tool before you print (documented on the Color Separation Overlay page), not a drift measurement or an automatic correction.
• Your per-channel curves, in the Curve workshop. They handle contrast and density for each channel separately. They don't correct tint, but they're what's left for the part your black-and-white curve already covered.

#Worth remembering