沙漏单词 vs Etch

背单词最怕两件事：记不住，和以为记住了。 沙漏单词用「选义→拼写→听写」三关融合学习，认识、会拼、听懂缺一不可，背过就是真的会。 【科学记忆】 ▪ 融合学习三阶段：选义打底，延后拼写强化，听写收口，对抗遗忘 ▪ 高频词优先：按真实词频排序，先记最常用的 【听得清，读得准】 ▪ 单词、例句即点即读，标准英式发音与音标 ▪ AI 语音评测，跟读打分，逐词纠音 【词库全，够个性】 ▪ 中高考、四六级、考研、雅思、托福、专四专八全覆盖 ▪ 课本同步定制词书，学校学什么就背什么 ▪ 生词本、单词导出，离线也能复习 【每天一点点】 ▪ AI 每日一题，一分钟保持语感 ▪ 学习统计与打卡，进度看得见 ▪ 纯净无广告，iOS 与微信小程序多端同步 服务条款：https://hword.cn/docs/terms 隐私政策：https://hword.cn/docs/privacy

Note: Etch's interface and its AI-generated definitions are in Chinese. It is built for Chinese speakers learning English. I built Etch because vocabulary never stuck for me. Words I looked up were gone the next day. My dictionary app held hundreds of saved words and not one of them had become mine. What I eventually understood is that the problem was not recall — it was writing. Reading a word ten times does less than writing it once. Psychologists call this the generation effect: producing the answer yourself leaves a far stronger trace than reading it. So Etch does one thing well. It makes you write the word. Capture without leaving what you're reading A Shortcut pulls the selected word in along with the sentence it appeared in. The sentence where you met the word is the sentence you'll see again at review time — words stripped of context are the hardest to keep. The entry fills itself in Pronunciation, definitions, example sentences, morpheme breakdown and common collocations arrive a few seconds after you add the word. Senses are ordered to fit the sentence you captured, rather than copied from a dictionary in fixed order. Review by writing, not by recognizing Write with a finger or Apple Pencil, get judged the moment you finish, and see letter by letter where you went wrong. Three modes: write from the meaning, write from the pronunciation, or fill the blank in a sentence. Recognizing a word is not the same as being able to write it — that difference is the whole point of Etch. Scheduling is handled for you Etch uses FSRS-5. It schedules each review from the word’s difficulty, stability, and current retrievability, aiming to bring it back as memory weakens rather than promising an exact moment of forgetting. One vocabulary across Mac and iPhone Capture on the Mac, review on the iPhone, progress syncs both ways. A home screen widget keeps today's words in front of you, and the ink darkens as you finish them. Etch is free, carries no ads, and does not sell your data. You can export your whole vocabulary at any time, and delete your account from inside the app.