Screen awareness
One explicit ask, one fresh screenshot — DOT404 answers about what is actually on your display, not what it guesses.
How screen questions workMeet Amethyst
DOT404 is a screen-aware desktop companion — it sees what you see, points at what matters, and teaches you one step at a time. Always here. Never in the way.
Product
Three moments from the desktop app — captured in spirit, built in code.
Ask “where do I click?” and DOT404 grounds your answer with real arrows, boxes, circles and lines drawn on an overlay — up to eight targets at once, locked to your display’s coordinates.
Screen awareness & guidanceExplain on Screen turns any answer into a guided lesson: captions, highlights and voice — one step at a time, drawn from a single screenshot, never leaving your desktop.
Read the documentationPush-to-talk voice chat with fast, natural speech — ask hands-free while your hands stay on the work. Same conversation, same memory, same screen context.
Voice interactionFeatures
One explicit ask, one fresh screenshot — DOT404 answers about what is actually on your display, not what it guesses.
How screen questions workGrounded arrows, rectangles, circles, lines and pointers drawn in a transparent overlay — accurate to every pixel of your display.
See the pipelineTurn any answer into a numbered lesson with captions, highlights and voice — guided, paced, and repeatable.
Teaching docsPush-to-talk in, natural speech out — a real conversation that never steals focus from your work.
Voice detailsChats live on your device by default. Screenshots are transient — captured for the answer, then gone.
Privacy draftProvider failover behind one secure gateway — the answer keeps coming even when one engine is rate-limited.
Models & BYOKPrivacy
Screen-awareness is only worth trusting if it is boring about your data. DOT404 is built the boring way.
Company
DOT404 is built by a tiny team that believes desktop software can be helpful without being loud — a companion that watches the screen with you, explains what it sees, and then gets out of the way.
We ship in the open, read every report, and keep the roadmap honest: no dark patterns, no telemetry you didn’t ask for, no feature that exists only to keep you staring.
FAQ
No. It captures a single fresh screenshot only when you explicitly ask a screen question or start a lesson, uses it for that answer, and lets it go. Nothing is recorded in the background.
DOT404 is a desktop app for Windows 10 and 11 today. macOS is on the roadmap.
The app is free to download. AI usage runs through provider tiers — generous for normal use, with fair-rate limits when a provider throttles.
Yes — push-to-talk voice chat with fast, natural speech, sharing the same conversation and screen context as text.
That’s the point. Amethyst lives in a tiny always-on-top window, and its guidance is drawn in a click-through overlay above whatever you’re doing.
Download
Free for Windows. One installer, two bots, zero clutter.
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