Release notes

What’s changed in each App Store release.

Version 1.4

22 September 2026

Turn your phone. Undertint now works in landscape as well as portrait. The controls move to a single bar under the photo, and the photo gets the rest of the screen.
Colours slide in, rather than taking over. Tapping a colour slides its detail in over the photo: up from the bottom in portrait, in from the side in landscape. The photo underneath stays exactly where it was.
More recipes at once on iPad. Where the panel is wide enough, mixing recipes sit side by side instead of one at a time.
The loupe reaches the edges. You can now sample right up to the top edge of a photo.
No more pause on a new colour. Recipe searching has moved off the main thread, so tapping a colour no longer freezes the screen for a moment.
Undertint now explains why a photo could not be imported, and accepts more photo formats.
The mixing recipes themselves are unchanged in this release.

16 September 2026

A new look. Undertint has been redrawn throughout: clearer type, calmer colour, and more room for the photo you’re working from. There’s a new app icon to go with it.
Ninety-two more paints. The catalogue now holds 222 paints across nine brands, all measured in-house rather than borrowed. You can see which version you’re on in About.
A gentler start. The studies list now explains what a study is before you’ve made one.
Better on iPad. The colour detail sheet is sized to its contents rather than to the screen, so it no longer swallows the photo.
Fixed a bright rim that could appear around paint swatches.

9 June 2026

Improvement to building Studies. You can now bookmark mixing recipes you plan to use for each colour. They’re saved to the Study and positioned as the first recipe when you next tap a colour swatch or cluster.
Bookmarked recipes set the tone. Once you’ve selected a recipe, Undertint favours mixes that reuse it elsewhere in your Study, so the whole piece hangs together better.
More paints. I’ve added the Van Gogh Pocket Box and other requested paints from Daniel Smith, Old Holland and M. Graham.
Easier paint requests. There’s now a link in the Palette view that drafts an email for you to fill in and send.
Recipe saving and palette coherence are part of Undertint Pro.

15 May 2026

13 May 2026

Undertint Pro. Optional one-off in-app purchase that unlocks two- and three-paint mix recipes for closer colour matches to any reference colour.
Dilution gradient strips. Each Pro mix recipe shows a strip from masstone to bare tint, illustrating how the paint behaves at different concentrations.
New preset palettes. Five sets covering Daniel Smith Essentials Introductory Set, Holbein Artists’ Watercolours Set, Schmincke Horadam Aquarell Metal Set, Sennelier L’Aquarelle Classic Metal Half Pan Box, and Winsor & Newton Professional Starter.

13 May 2026

First public release.

Import a reference photo and simplify it into paintable colour regions.
Build a personal palette of the paints you actually own.
Tap any region to see its Munsell notation and the closest single paint match from your palette.
Save studies for later reference.