Coding School vs NERRA

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

Learn English words, build your vocabulary and remember more with NERRA. Create vocabulary flashcards from your own word list, choose a ready-made vocabulary set, and practice the same words through spaced repetition and 15 interactive vocabulary games. NERRA is an English vocabulary learning app for students, ESL learners, beginners, adults and anyone who wants to improve vocabulary without studying random words. Learn the vocabulary you actually need for lessons, homework, everyday English, travel, work, reading or an exam list. CREATE YOUR OWN VOCABULARY FLASHCARDS Paste a complete list in “word - translation” format and NERRA turns it into custom flash cards in seconds. You can also add words one by one or start with a ready-made set from the NERRA catalog. • Create and edit your own vocabulary lists • Add translations and pictures • Use built-in images or upload your own photos • Share a vocabulary set by link or QR code • Import words from an English lesson, book, series or study list • Learn English vocabulary or study words in another language 15 VOCABULARY GAMES WITH THE SAME WORDS Practice does not have to feel repetitive. Use the same English words in 15 different learning games and activities: • Vocabulary Flashcards • Learn: a multiple-choice vocabulary quiz • Review of the Day with spaced repetition • Word Search • Crossword • Hangman • Memory Game • Matching Game • Anagram and Unscramble • Spelling Practice • Word in a Sentence with gap-fill exercises • Guess and Remember • Wheel • Swipe Cards • Speed Tap Switch between English games, flash cards, spelling, matching, memory and word puzzles while keeping the focus on your own vocabulary. SPACED REPETITION AND DAILY REVIEW NERRA brings words back when they need another review. Spaced repetition helps you memorize difficult vocabulary and spend less time on words you already know. • Complete a daily vocabulary review • Repeat difficult English words more often • Track learned words and study progress • Build a study streak • Return to any vocabulary set at any time ENGLISH FOR BEGINNERS AND CONTINUING LEARNERS Beginners can start with ready-made vocabulary flashcards, pictures and translations. More experienced ESL learners can create custom flashcards from lessons, books, articles, series, work materials or exam vocabulary. LESSONS, HOMEWORK AND TEACHER SUPPORT NERRA also connects vocabulary practice with learning from a teacher. If your teacher uses NERRA, English lessons and homework assignments can appear directly in the app. Complete vocabulary exercises and games, then receive automatic checking and continue practicing the words from your lesson. SYNC YOUR VOCABULARY AND PROGRESS Sign in to save your vocabulary sets, sync your learning progress and continue studying across supported devices. START WITHOUT AN ACCOUNT Open NERRA, continue in Guest Mode and begin with a sample vocabulary set. Create an account only when you want to add more sets, import a word list, sync progress or share flashcards. WHY LEARN WITH NERRA? • Your own words and ready-made sets that match your goals • Vocabulary flashcards and 15 English learning games in one app • Spelling practice and words with pictures • Spaced repetition and daily review • Progress tracking and study streaks • Teacher lessons and homework support • Custom vocabulary lists and shareable sets • English, Russian and Thai interface languages • Free on iPhone and iPad • No advertising on iOS Build your English vocabulary with the words that matter to you. Add a list, choose a game and start learning.