DailyDiff: Synonyms & Nuance

Read the AI's feedback, revise your answer, and score again. Pro members can now study any past puzzle's model answer. One subtle difference every day.

Master the subtle differences between English words — one pair a day.

DailyDiff gives you two easily confused words every day (like Begin vs Start), each with a clean black-and-white illustration. Your job: explain, in English, how they really differ. An AI then scores your answer across five dimensions and reveals the model answer — so you learn something precise every single day. WHY DAILYDIFF • One focused puzzle a day — no endless feeds, no overwhelm • Write freely; get specific AI feedback, not multiple choice • Five-dimension scoring: accuracy, coverage, language, clarity, insight • A clear model answer with definitions, key differences, examples, and common mistakes • Build a daily streak and share a no-spoiler result card

Perfect for English learners, ESL / TOEFL / IELTS prep, writers, and anyone who loves the nuance of words.

One subtle difference a day. That's all it takes.

DailyDiff Pro — Subscription

Unlock past puzzles and more daily AI scorings with DailyDiff Pro, an auto-renewable subscription. • Monthly — $1.99 / month • Yearly — $12.99 / year (best value)

Today's puzzle and a basic daily AI scoring are free. Pro is optional.

Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Prices may vary by region.

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