DailyDiff.
One subtle word difference a day.
Describe it in English, get AI feedback, keep your streak.
Free to play · One puzzle every day
每天一道近义词辨析。
用英语写出区别，AI 五维点评，连续打卡。
免费上手 · 每天一道新题
How it works
- One pair a day. Two easily confused English words (like Begin vs Start), each with a black-and-white illustration.
- Explain the difference. Write — or, with Pro, say out loud — in English how the two words differ in meaning, tone, and usage.
- Get AI feedback. An AI scores your answer across five dimensions — accuracy, coverage, language, clarity, insight — then reveals the model answer.
- Build a streak & share. Keep a daily streak and share a no-spoiler result card, Wordle-style.
DailyDiff is a focused way to master English synonyms and near-synonyms — one subtle difference at a time.
怎么玩
- 每天一对。一组容易混淆的近义词（如 Begin vs Start），各配一张黑白线稿插图。
- 写出（或说出）区别。用英语描述两个词在含义、语气、用法上的不同；Pro 还可以直接说出来。
- AI 点评。AI 从准确性、覆盖度、语言、清晰度、洞察五个维度评分，并揭晓标准答案。
- 打卡 & 分享。维持每日连续记录，像 Wordle 那样分享一张不剧透的成绩卡。
DailyDiff 用最聚焦的方式帮你攻克英语近义词辨析 —— 每天搞懂一个细微差别。
Why you'll like it
Feedback, not just a score
Every answer is rated on accuracy, coverage, language, clarity, and insight — with a radar chart and a model answer to learn from.
A streak worth keeping
One puzzle a day. Watch your calendar fill in and your streak grow, Wordle-style — small habit, real progress.
Share without spoilers
Export a clean result card with your grade and radar. It never reveals the answer, so friends can still play.
Illustrated word pairs
Each pair comes with two black-and-white line illustrations that make a subtle difference click at a glance.
Say it, too (Pro)
Answer out loud and the AI listens to your actual recording — scoring fluency, pronunciation, accent and intonation, and pointing out words to fix.
Learn from a stronger version
After each answer you get an improved version of it, so you see exactly how to say the same idea more naturally.
你会喜欢的地方
不只给分，还给点评
每次作答都从准确性、覆盖度、语言、清晰度、洞察五个维度打分，配雷达图，并揭晓标准答案供你对照学习。
值得坚持的连续打卡
每天一题，像 Wordle 一样累积连续记录，看日历一格格被点亮 —— 小习惯，真进步。
不剧透的成绩分享
导出一张只含等级与雷达的成绩卡，绝不泄露答案，朋友照样能玩。
配插图的词对
每组词都配两张黑白线稿插图，让细微差别一眼看懂。
还能说出来（Pro）
用语音作答，AI 直接听你的真实录音，为流利度、发音、自然度和语调打分，并指出需要改进的单词。
从更好的版本里学
每次作答后都会得到一份改写后的范文，让你看到同一个意思怎样说得更地道。