Six brushes that behave differently, seven shapes it will snap a rough stroke to, strokes you can grab and bend after the fact, an infinite canvas and a sixty-minute recorder. Every number on this page is the one in the code, and the four things it cannot do are listed at the same size as the things it can.
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Six brushes is only a number if five of them are the same brush in different colours. These differ in behaviour, which is the part worth knowing before you pick one — and the rack above is not an illustration of them, it is them, drawing the same path six different ways.
The split worth understanding is that three of these exist for the drawing and three exist for the footage. Marker, Mono and Velocity are what you reach for when the picture is the point. Neon, Rainbow and Sparks are built to survive video compression and to read at a glance on a small screen, which is a different problem — a subtle brush and a 480-pixel-wide phone player are not friends.
Size runs from 1 to 40 and steps by two on the square-bracket keys, which matters more than it sounds: a hand in mid-air covers a lot of canvas quickly, so the difference between a 6 and a 14 is the difference between writing a word and filling the frame with it. Most people settle around 10 to 14 for drawing and drop to 4 or 5 the first time they try to letter something.
Brushes are the part every drawing tool has. The rest of this list is where a camera-driven tool has to do work that a mouse-driven one never needed to — a hand in mid-air is not steady, cannot click, and has no buttons to press, so every one of these exists to close a specific gap between what your hand did and what you meant.
They also all work the same way: you do the imprecise thing, and the tool resolves it only when you signal that you are finished. Nothing here corrects you while you are still moving, because a tool that second-guesses a stroke in progress is worse than one that does nothing at all.
thumb + index + middle pinch, zoom with thumb + middle moved up or down. The canvas has no edge to reach.index + middle for the tools menu, pinch ERASE, then pinch over the strokes you want gone.index + middle + ring. Also Ctrl/Cmd + Z.Everything below is read out of the source rather than rounded for a marketing page. Where a figure looks oddly specific — 3600 seconds rather than "about an hour", quality 1.0 rather than "high quality" — that is the actual constant, and it is written that way so you can check it against what the tool does.
1 to 40, stepped by two with [ and ].1.0.3600 seconds — sixty minutes.2×, 3× or 5×. On the MP4 path it is a near-instant timescale patch rather than a re-encode.Ctrl/Cmd+Z undo · E toggle erase · [ ] size · F fullscreen · Esc close the preview. Everything else is a gesture.2000ms holding an open hand, 1000ms holding a pinch. Thresholds are placed inside the gap measured on your hand, never at a fixed ratio.Those last four are listed at the same size as everything else on purpose. A spec page that only specifies the good numbers is a brochure, and anyone who reaches this page is already past wanting one.
The gap that catches people out is the third one. Because there is no account and no autosave, the tab is the document — and browsers close tabs for their own reasons. If you are working on something you care about, take a PNG snapshot as you go; it costs one gesture and it is the only backup that exists. The recorder is the other quiet insurance, since a sixty-minute capture of the session contains every state the drawing passed through even if the final one is lost.
And the honest framing on the whole spec: this is a complete tool with an unusual input, not a complete replacement for a desktop art program. It has no layers and no colour management, and it will not be the thing you finish a commission in. What it has instead is the property that none of the others have — the drawing and the person making it exist in the same frame, with nothing between the hand and the line, on hardware you already own.
Still stuck? Open the canvas and try it — the thing answers faster than reading about it does.
Try it FreeNo. There are no layers, and that is a real gap rather than a feature waiting behind an upgrade — everything you draw lands on one surface. If your work depends on layers, a raster editor is the right tool and this is not it.
No, because there is no pen touching a surface to measure pressure against. What exists instead is speed: the Velocity brush maps how fast your hand is travelling to how wide the stroke comes out, with a taper on entry. It is expressive in most of the same places, and it is not the same thing.
Stills export as PNG — full resolution, lossless, written at quality 1.0. Video exports as MP4 where the browser can remux it and WebM as the fallback. The timelapse export runs at 2×, 3× or 5×, and a single recording is capped at 3600 seconds.
No. It loads like a web page, so opening it needs a connection. Once open, the tracking and the drawing run entirely on your device.
A few, for the things a hand in mid-air is clumsy at: Ctrl or Cmd with Z undoes, E toggles the eraser, the square brackets step brush size down and up by two within a range of 1 to 40, F goes fullscreen, and Escape closes the export preview. Everything else is a gesture.
Free, and there is no account system in the product at all — no sign-up, no trial, no paywall, no in-app purchases. Exports carry a small getairva.com corner mark, on images and video alike, and no paid tier removes it.
Every number above is the one in the code. The fastest way to check any of them is to open it and try.