AI-powered study and exam preparation platform that turns your notes, slides, books and photos into questions, study plans and spaced-repetition reviews.
Natural British voices from your script — 262 British voices (RP, Scottish, Welsh, Northern Irish).
Play free Sudoku online from Easy to Expert level with daily challenges, solver tools, killer sudoku, and printable puzzles.
Get answers you can prove from your data without having to think about it.
A curated, opinionated directory of renovation contractors in Singapore — personal recommendations, not a marketplace.
Free IPv4 and IPv6 subnet calculator with CIDR notation support, binary visualization, and instant results for network analysis.
Play 22 free Bible games online—including quizzes, puzzles, adventures, and group games. No download or sign-up; Scripture references included.
Free web to EPUB converter that transforms any webpage into eBook format instantly for offline reading on Kindle, iPad, and other e-readers.
Guided Mandarin lessons for iPhone, iPad and Android, with vocabulary, grammar, dialogues, listening, reading and practice assessments. Try the first unit of any available level free; monthly or yearly Pro unlocks more.
Learn Chinese idioms with meanings, pinyin, usage notes and examples. Browse the web library or use the iPhone and iPad app for offline reading, flashcards and Home Screen widgets.
Turn your notes, PDFs, and PowerPoint slides into AI-generated quizzes, flashcards, and active-recall practice. Exam-style questions, free to start.
Take a free 40-question reasoning test with no signup. View an estimated score and explore an optional one-time paid report.
