Digital painting skips the part I loved

I trained as a painter at the Schuler School of Fine Arts, and I've wanted this app for years. Digital paint is fast and forgiving, but it skips everything that makes oil painting oil painting: the weight of a loaded brush, paint that's still wet tomorrow, a canvas that drinks thin paint and holds thick paint up.

The closest apps each do part of it. ArtRage tracks paint and wetness. Rebelle has thick, dripping oils but isn't on the iPad. Fresco's live oils dry when you press a button. None of them let paint dry over time, treat the ground and the brush as real objects, or give you a surface you could print in relief.

Every stroke is physics, not a texture

Paint in impasto has a real height. A brush holds a real load across its bristles and gets dirty as it goes. Colours mix the way pigment does, so blue and yellow make a believable green and white cools what it touches.

The canvas matters too. Gesso, linen and panel each have their own weave, absorbency and grab. Thin paint flows and soaks in, and thick paint stands up and holds the mark of the brush.

Paint that dries on its own clock

Real oil paint dries from the top down. In impasto a thin film skins over in a day or two, half a millimetre takes over a week, and a thick blob can stay soft inside for months. A light touch rides over a skin, and a hard bristle brush breaks through it.

Everything a painter does with time is there: medium that thins paint into a glaze, turps that lifts fresh paint, sandpaper that knocks down dried ridges, varnish that evens the shine. There's no “dry now” button. You wait, or you move the clock on a day.

The app learned by being painted with

Instead of testing features one at a time, the app was used to paint real pictures from a reference while I coached, the way I'd teach a student: commit to the stroke, find the shadow shapes, use the background to define the object, let it dry and sand it down.

Every sitting turned up something to fix. Wet-into-wet passes turned to mud, so the app now shows wet paint and suggests letting it dry. Colours came out too dark, which led to a colour fix that took mid-tones from 35% too dark to 7%. Blending was too weak, sanding too rigid, and the darkest paints couldn't get dark enough. Each one got fixed and painted again.

The biggest lesson was about judgement, not code. One painting that chased the reference's numbers region by region looked worse than an earlier, lighter version with one unified, warm tone. You judge a painting by squinting at the whole thing, not by the meters.

Help at the moment you need it

impasto has a teacher built from the way I was taught to paint. It shows shadow shapes as glowing guides, suggests the next step, and gives a hint when it matters, without adding screens before you can start.

That last part is a rule: no extra onboarding steps. You open the app and paint. Sign-in is a six-digit code typed in the same tab, because emailed links on an iPad open in the wrong browser and lose the painting.