Coding School

Coding School teaches you to code with short lessons you can finish in a few minutes a day. Learn Swift, Python, data science and AI with Python through real code examples and instant feedback. FOUR LEARNING PATHS • Basic Swift: variables, functions, optionals, structs, enums, closures, protocols, error handling, SwiftUI basics and a project • Basic Python: types, conditions and loops, lists and dictionaries, functions, classes, modules, files and errors • Data Science with Python: pandas, cleaning data, statistics, charts, machine learning and model evaluation • Basic AI with Python: using AI models, prompting, embeddings and semantic search, retrieval-augmented generation (RAG), evaluating AI output and AI safety LEARN BY DOING • 42 lessons split into bite-sized subtopics • 706 exercises: multiple choice, multi-select, fill in the blanks, code entry and projects • Checkpoints inside every lesson confirm you understood before you move on • Hints, explanations and model answers for every exercise • Final review tests show what you remember PRACTICE QUIZZES • 800 practice questions across the four paths • 10 random questions per attempt, with a full answer review and the topics to revise BUILD A DAILY HABIT • Set a daily goal and keep your streak going • Optional daily reminder • Stars, achievements and progress for every lesson LEARN IN YOUR LANGUAGE • Lessons and quizzes in 18 languages, switchable inside the app • Code stays in standard English, just like in real projects FREE TO START • The first 3 lessons of every path are free, and no account is needed • Full Access is a one-time purchase, not a subscription: every lesson, no banner ads, a certificate of completion for Basic Python and all future lessons