Coding speed is bottlenecked by the symbol keys: {}, (), =>, [], ;. Practice on real code, not prose.
General typing tutors drill prose. Programmers type a specific vocabulary — so practising that vocabulary builds the muscle memory that actually speeds up your day. The AI coach watches which keys and sequences cost you the most, then generates fresh practice on TypeScript and React code aimed at exactly those.
Drill the identifiers from your own codeThe same bands apply whatever you type; the vocabulary only changes how quickly you reach them.
Accuracy matters more than raw speed: going back to fix a mistake costs more time than it would have taken to type the whole word slightly slower.
A general test drills prose. Programmers type a specific vocabulary all day, and practising that vocabulary is what builds the muscle memory that actually speeds up your work.
Yes. The lessons, the speed test, the daily challenge and the races are all free, and none of them need an account. Signing in only syncs your progress between devices.
Most people see a measurable gain within two weeks of short daily sessions. Fifteen focused minutes a day beats an hour once a week, because the gain comes from repetition rather than volume.