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Mobility and stretching routines with sport-specific settings

Calisthenics sessions, skill programs and a custom workout builder

AI English speaking practice with instant feedback and language level certificates.

AI assistant for writing, editing and content tasks in Google Workspace, the web and Chrome.

AI language tutor for speaking practice with instant corrections

Strength-workout planning with adjustable sets, repetitions and weights

Street-interview videos and podcasts for language learners.

English study combining live classes and self-study.

German reading with difficulty labels and vocabulary explanations.

A beginning-French curriculum with culture, audio and activities.

ASL signs, tutorials and receptive practice.

Free ASL lessons, dictionary and learning games.

Python tutorials with paths, quizzes and exercises

Piano practice that responds to the notes you play

Integration with visible input, steps and graphs

Symbolic, numerical and graphical mathematics tools

A beginner's guide to Russian sounds, vocabulary and grammar.

A mental health app with meditations, sleep tools, coaching, and online therapy.

Free English courses with practical life and work topics.

Teacher-led English videos organized by topic and level.

Programming exercises that expose cryptographic weaknesses

Video-led language study and personalized online Spanish.

Regular-expression lessons with matching exercises

Coding courses and articles with practical exercises