realkai42/qwerty-learner is a web learning app that memorizes English words by typing them directly. It covers word memorization and English typing muscle memory training in a single program. It is written in TypeScript and follows the GPL-3.0 license. The repository was created on January 21, 2021 and has 23452 GitHub stars.
The README describes the project as word memorization and English typing muscle memory training for keyboard users who use English as their main working language. Muscle memory is a habit in which the hands type input automatically. Because the design makes you type a word again when it is entered incorrectly, spelling recall is trained as well. It provides CET-4, GRE, IELTS and TOEFL exam vocabulary lists and programming language API vocabulary. It has pronunciation and phonetic symbol display, a dictation mode, and typing speed and accuracy display, and supports vocabulary learning with wordbook, pronunciation and accuracy feedback.
However, there are no figures in the material that back the learning effect. There are no comparison tests or user performance statistics, so it is not possible to confirm how many words are memorized or how memory retention differs. In the accompanying evaluation, the freshness, technical and quality scores are empty and only the momentum score remains, at 4.9 out of 10. The criteria behind the scoring are not included in the material. GPL-3.0 also requires the same license conditions for distributing modified versions. The published evidence is limited to the feature list and the momentum score.