Engineering student builds AI-assisted typing trainer with 31 sub-levels and bigram tracking

A first-year engineering physics student has launched WorkThoseKeys, a free typing trainer built using Lovable, a prompt-based AI app builder, without writing code by hand. The tool features 31 sub-levels across eight stages, introducing one finger at a time before combining them, with each level structured around warmup, weak points, integration, and a progress check. Unlike most typing trainers, it tracks per-bigram error rates — identifying which letter pairs a user struggles with — and separates keyboard layout settings from content language. The app also includes an AI coach that translates typing data into plain-language advice, and a book mode that lets users type real public-domain literature, from short poems to the full text of Moby-Dick. All features are available for free with no sign-up required, though users can log in with Google to save stats and streaks.