Comparison

知米背单词 vs wordDNA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

知米背单词

记单词又快又牢又有趣

Free

📚 Education

★ 4.8468 ratingsView app →

wordDNA

Word Origins & Word Roots

Free

📚 Education

★ 5.05 ratingsView app →

About

知米背单词

This app offers a fun and effective way to memorize English vocabulary, with seven mnemonic methods and scientific review techniques. It also includes grammar lessons and reading practice with authentic materials.

Highlights

Seven mnemonic methods for memorization
Scientific review in context
Comprehensive study data statistics
10-hour grammar mastery
Practice with authentic reading materials
Daily bilingual news and classic books

Read full description

知米背单词不仅是高效记单词的利器，还是学语法、练阅读的好助手。知米背单词让背单词不枯燥，容易记：【七种助记】提供了七种助记方式：形近助记、词根助记、词缀派生、合成词、联想记忆、谐音记忆和图片记忆，对每个单词选择较优的方式帮你记住。【科学的复习】在例句场景中复习单词，这是一种更符合记忆规律的复习方式，让记住的单词不容易忘记。另外，还提供了丰富的加练方式，包括听音辨意、全拼练习、听音复习等方式。【数据统计】有较全面的学习数据，让你随时了解自己的学习进度，包括你所背诵的每一个单词的熟悉度、本次学习错误次数和剩余待复习次数、累计学习单词、累计学习时长、记忆曲线和毅力曲线等。 APP中的语法模块不同于传统英语语法教学，我们目标是帮你10小时内学通语法。知米英语语法的特色： 1、有清晰的语法体系主要的语法点都在一个框架图中呈现，脉络清晰。 2、从原理上讲透每个语法知识点让学习者知其然，也知其所以然。 3、拒绝死记硬背每个语法点在理解的基础上记住。 APP中的真题阅读： 1、我们提供了包括高中、四六级、考研、雅思托福在内的真题供同学们阅读。当然，对于想要从更广范围汲取英文知识的同学，我们还提供每日的双语新闻和经典的英文书籍。我们衷心地感谢各位同学对我们的支持和信任。我们会不断迭代自己的产品和内容，争取带给同学们更多英语学习上的改善。我们的联系方式：知乎：知米背单词客服QQ:2064269289 邮箱：zhimiabc@163.com

About

wordDNA

This app helps users understand English vocabulary by breaking down words into their roots, prefixes, and suffixes. It provides bilingual explanations, pronunciation, and usage examples, with offline access and basic learning tools included for free. Advanced features and content are available through an optional subscription.

Highlights

Bilingual word explanations
Etymology, roots, prefixes, suffixes
Pronunciation and usage examples
Offline dictionary lookup
Favorites and saved words
Basic quiz and review tools

Features

Read full description

Every word has a story. Discover its DNA. Why does "goodbye" come from "God be with ye"? How did "nightmare" get its name? And what do seemingly unrelated English words have in common? Discover the fascinating history hidden inside everyday language with wordDNA, an etymology dictionary designed for curious minds. Whether you're a language enthusiast, a writer, a student, or simply someone who loves discovering where words come from, wordDNA makes exploring English etymology intuitive and enjoyable. EXPLORE WORD ORIGINS Look up English words and discover their origins, historical meanings, and linguistic connections. Follow the evolution of words across languages and centuries, from Latin and Greek to modern English. UNDERSTAND WORD STRUCTURE Explore how prefixes, roots, and suffixes contribute to word meanings. Discover the building blocks of English vocabulary and understand how words are formed. DISCOVER THREE WORDS EVERY DAY A little curiosity goes a long way. Explore three carefully selected words each day, accompanied by illustrations and interesting linguistic insights. Turn a few spare moments into a daily journey through language. YOUR PERSONAL WORD COLLECTION Save interesting words, build your own vocabulary collections, and revisit the words that catch your attention. Keep your favorite discoveries close at hand. LEARN IN YOUR OWN LANGUAGE Explore English words with definitions in English, Chinese, or Japanese. Choose your preferred dictionary language for free, or unlock all available languages with wordDNA Plus. GO FURTHER WITH WORDDNA PLUS Unlock additional features designed for deeper exploration: • Access all dictionary languages • Switch freely between English, Chinese, and Japanese definitions • Download complete offline dictionaries • Enjoy additional premium learning features A DICTIONARY FOR THE CURIOUS Language is full of surprises. Behind every familiar word lies a story of history, culture, and human imagination. Start exploring with wordDNA. Discover the stories behind the words.

Screenshots

知米背单词4 screens

wordDNA3 screens

Verdict

The call

The clearest difference is ads: 知米背单词 at none against wordDNA's shown. 知米背单词 also leads on ratings volume (468 vs 5) and device support (4 vs 1). wordDNA's advantage is update cadence (every 6 days vs every 5 weeks). On price, rating, review sentiment and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 知米背单词 sells 12 one-off in-app purchases and wordDNA sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

wordDNA holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 知米背单词 has 468 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 97% of 知米背单词's written reviews are positive against 100% of wordDNA's.

UpkeepUpdate frequency

知米背单词 ships an update every 5 weeks, wordDNA every 6 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level

知米背单词 versus wordDNA: the parameters behind the verdict, then further details
Parameter	知米背单词	wordDNA
Price	Free	Free
Rating	4.8 (468 ratings)	5.0 (5 ratings) — better
Positive reviews	96.6% of reviews	100.0% of reviews — better
Number of ratings	468 — better	5
Update frequency	Every 5 weeks	Every 6 days — better
Ads	No — better	Yes
In-app purchases	Yes	Yes
Monetization	Free with in-app purchases	Freemium
Devices	iPhone, iPad, iPod, Apple Watch — better	iPhone
Requires iOS	9.0 — better	17.5
Further details — not scored
Size	147 MB	89 MB
Age rating	4+	4+
Developer	BlueBrain Educational Technology Co., Ltd.	峰潘