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DailyDiff
Wordle for English nuance — daily puzzles, AI feedback
Every day: one pair of easily confused English words (Soldier vs Warrior), each illustrated. Describe the difference in English, get five-dimension AI feedback like a personal tutor, reveal the model answer, keep your streak, and share a spoiler-free card.
Hi Product Hunt! 👋 Solo developer here.
As a non-native English speaker, I always knew what soldier and warrior meant — but when a friend asked me to explain the difference in English, I completely blanked. That gap between "recognizing a word" and "commanding its nuance" is what DailyDiff attacks.
How it works: every day, everyone gets the same pair of easily confused words, each with a black-and-white line illustration. You write the difference in English, and an AI grades you across five dimensions — accuracy, coverage, language, clarity, insight — each with a comment written for your answer, like a tutor marking your work. Then the model answer is revealed, you keep your streak, and you can share a Wordle-style card that never spoils the answer.
Free & paid: today's puzzle is always free — you can try it without creating an account (1 AI scoring/day anonymous, 2 signed in). Pro unlocks the 200-puzzle back catalog, a study mode, and 15 scorings a day.
A few fun build notes: all 400 illustrations are AI-generated line art; scoring runs on Cloudflare Workers with the rubric kept server-side; anonymous scoring is protected by Apple's App Attest instead of forced sign-ups.
I'd love your feedback — especially on the scoring quality and what would keep you coming back daily. I read and answer everything. 🙏
How does the five-dimension feedback actually work under the hood, especially for nuanced pairs where native speakers themselves disagree on usage? Curious whether the AI draws from a fixed rubric or adapts over time based on what gets upvoted in the shared cards.
It would be great if you could add a spaced repetition mode that pulls back words you missed or struggled with on previous days. Combining the daily streak habit with actual retention feels like the missing piece for turning this into a real learning tool rather than just a fun daily ritual.
About DailyDiff on Product Hunt
“Wordle for English nuance — daily puzzles, AI feedback”
DailyDiff was submitted on Product Hunt and earned 3 upvotes and 3 comments, placing #160 on the daily leaderboard. Every day: one pair of easily confused English words (Soldier vs Warrior), each illustrated. Describe the difference in English, get five-dimension AI feedback like a personal tutor, reveal the model answer, keep your streak, and share a spoiler-free card.
DailyDiff was featured in Education (78.8k followers), Languages (14.4k followers) and Artificial Intelligence (473.8k followers) on Product Hunt. Together, these topics include over 142.5k products, making this a competitive space to launch in.
Who hunted DailyDiff?
DailyDiff was hunted by LuYang Li. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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LuYang Li