Accuracy Gates Speed
Fast but sloppy typing is not counted as progress.
Typing Practice Demo
Repair one typing pattern before you read the pitch.
Type a short calibration first. When the browser has enough clean samples, it can pick a supported target for this run. The installed Mac app personalizes from your local profile. The summary stays scoped to this session.
Measured practice is for desktop physical keyboards. Phones are best for reading the product story.
Preparing browser demo
Ready
This browser demo starts with a session-local calibration baseline.
- Baseline
- Drill
- Held-out
- Transfer
Type when the first prompt appears. Press Escape to stop.
What This Session Can Say
A useful typing claim needs held-out evidence.
The browser demo collects a baseline, trains a pattern-dense passage, then checks held-out text and a transfer probe. Accuracy, correction cost, and sample counts decide whether a claim is eligible. Composition, dead-key, mobile, or interrupted input keeps browser claims approximate.
Corrections Matter
Backspaces and correction bursts are treated as trainable repair cost.
Samples Stay Honest
Small sessions can be useful without pretending to know your whole profile.
Why Install The Mac App
Real personalization comes from real typing, kept local.
The installed app observes typing friction on your Mac, stores aggregate pattern evidence, and sends only a bounded practice prescription to the same trainer. Browser practice can prove the loop. The Mac app can choose targets from your local profile.
Privacy Promise
No account, no browser typing history, no typing telemetry.
This demo stores no typed attempts in browser databases, cookies, analytics, or a server. The public build is checked for typing-code network calls.