Comparison

墨墨背单词 | 四六级考研等英语词汇记忆 vs 知米背单词

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

Head to head
About

墨墨背单词 | 四六级考研等英语词汇记忆

This app uses a scientific, anti-forgetting algorithm based on user memory data to dynamically adjust review schedules. It offers comprehensive vocabulary content, including definitions, example sentences, and mnemonics, and supports syncing with popular vocabulary books for various exams.

Highlights
  • Scientific anti-forgetting algorithm
  • Dynamic review scheduling
  • Comprehensive vocabulary content
  • Syncs with popular vocabulary books
  • Personalized cloud wordbooks
  • Learning progress statistics
Features
Read full description

墨墨背单词,高效抗遗忘,完美规划海量词汇记忆。 • 全应用商店累计超过 3 亿下载总量 • 最受考研用户欢迎的背单词App • 教育类好评率最高的产品之一 • 墨墨独家发布了具有可解释性的记忆模型,并发布于全球数据科学领域顶级会议 ACM SIGKDD 《A Stochastic Shortest Path Alogorithm for Optimizing Spaced Repetition Scheduling》 • 墨墨首次将记忆预测与调度优化相结合,提供完整的间隔重复规划系统框架,并发布于国际数据挖掘顶级期刊 IEEE TKDE 《Optimizing Spaced Repetition Schedule by Capturing the Dynamics of Memory》 「这里有:科学高效的抗遗忘算法、精彩美妙的单词内容、简洁的操作,实实在在帮你高效规划海量词汇记忆。」 【精准高效的抗遗忘策略】 墨墨背单词基于 1200 多亿条用户记忆行为数据,结合你的每次记忆反馈,识别你的记忆持久度,分析你的遗忘曲线,精准定位你对每个单词的遗忘临界点,动态调整复习规划,帮你高效规划海量词汇记忆。 【完美配合知名词汇书籍】 墨墨背单词尊重权威的实体词汇书籍,全面兼容知名的实体书籍的同步学习,词库实时更新,不管是小初高、四六八,还是考研、出国考试,你手上的词汇书籍,墨墨背单词通通兼容,你再也不用担心所学词汇范围的权威性。 【简洁且极佳的单词内容】 墨墨背单词,为每一个单词都精心准备了简明扼要的释义、最具意境的例句和最佳的助记,单词内容的精细度远超同类产品。 【精彩美妙单词记忆方法】 墨墨背单词拥有全国最全的单词助记库,上千万学员有趣的助记分享,每个单词你都能找到精彩美妙、拍案叫绝且符合你的记忆方法,让你真正做到过目难忘。 【一目了然学习情况统计】 墨墨背单词以图表的方式记录了你复习的情况,并配合丰富的奖励策略有效地督促你更好地坚持复习,包括三大图表统计系统: * 遗忘曲线:真实反映了你在每个阶段对已学单词的遗忘率; * 学习情况:你每天复习了多少单词,已学情况及未来的复习压力; * 记忆持久度:你可以清楚地看到已学单词的熟知度情况。 【创建属于自己的云词本】 墨墨背单词允许你随时添加新单词到学习列表,你可以创建属于自己的云词本,或提取一篇文章中所有的单词,很好地配合了你平时生活学习对规划单词记忆的需求。

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

Screenshots

墨墨背单词 | 四六级考研等英语词汇记忆4 screens
知米背单词4 screens

Verdict

The call

The clearest difference is update cadence: 墨墨背单词 | 四六级考研等英语词汇记忆 at every 5 days against 知米背单词's every 5 weeks. 墨墨背单词 | 四六级考研等英语词汇记忆 also leads on ratings volume (5.5K vs 460). 知米背单词's advantage is iOS requirement (9.0 vs 13.0). On price, rating, review sentiment and ads 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. 墨墨背单词 | 四六级考研等英语词汇记忆 sells 9 one-off in-app purchases and 知米背单词 sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for 墨墨背单词 | 四六级考研等英语词汇记忆 against 4.8 for 知米背单词. That said, the two scores are not equally well evidenced: 墨墨背单词 | 四六级考研等英语词汇记忆 has 5.5K ratings behind it against 460, so its average is the more settled of the two. Written reviews are what separate them: 92% of 墨墨背单词 | 四六级考研等英语词汇记忆's written reviews are positive against 97% of 知米背单词's.

UpkeepUpdate frequency

墨墨背单词 | 四六级考研等英语词汇记忆 ships an update every 5 days, 知米背单词 every 5 weeks. The most recent releases landed on September 23, 2026 and August 12, 2026 respectively.

Scorecard3 real differences · 7 level
墨墨背单词 | 四六级考研等英语词汇记忆 versus 知米背单词: the parameters behind the verdict, then further details
Parameter墨墨背单词 | 四六级考研等英语词汇记忆知米背单词
PriceFreeFree
Rating4.8 (5.5K ratings)4.8 (460 ratings)
Positive reviews92.1% of reviews97.2% of reviews — better
Number of ratings5.5K — better460
Update frequencyEvery 5 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.09.0 — better
Further details — not scored
Size240 MB147 MB
Age rating4+4+
DeveloperMaiMemo Inc.BlueBrain Educational Technology Co., Ltd.

Customer experience

墨墨背单词 | 四六级考研等英语词汇记忆

All ratings5,526 ratings
Positive95.9%
Neutral1.1%
Negative3.0%
Written reviews698 reviews
Positive92.1%
Neutral2.3%
Negative5.6%

知米背单词

All ratings460 ratings
Positive97.2%
Neutral1.1%
Negative1.7%
Written reviews177 reviews
Positive97.2%
Neutral1.7%
Negative1.1%

User reviews

墨墨背单词 | 四六级考研等英语词汇记忆

From 5.5K App Store ratings

What we love

  • 👍 Simple and clean interface
  • 🚀 Efficient memory retention through scientific learning methods
  • 💡 Customizable learning plans and progress tracking
  • 🎉 Rewarding daily sign-in system
  • 🧠 Helpful mnemonic techniques and example sentences

Room to improve

  • 🔒 Limited free word count, requires paid upgrade
  • 🐛 Occasional issues with word pronunciation loading
  • ⏱️ Time zone mismatch for some users causing sign-in issues

知米背单词

From 460 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Efficient word learning
  • 💡 Helpful word association features
  • 🗣️ Good pronunciation examples
  • 📚 Extensive word library

Room to improve

  • 🐛 Occasional bugs or crashes
  • 💰 Some features require paid subscription
  • 🖥️ Lack of iPad support

Bugs and requests

墨墨背单词 | 四六级考研等英语词汇记忆

Reported bugs

2 issues
  • Inconsistent sign-in tracking across days
  • Difficulty accessing feedback/reporting channels

Requested features

4 requests
  • Expand free word count limit
  • Add more language options beyond English
  • Improve sign-in reliability across time zones
  • Provide more customization options for example sentences

知米背单词

Reported bugs

2 issues
  • Login issues on certain devices
  • Inconsistent word definitions

Requested features

3 requests
  • Improved multi-device synchronization
  • More customization options
  • Integration with other learning resources

In-app purchases

9 purchases

墨墨背单词 | 四六级考研等英语词汇记忆

One-time9
  • 增加 1 次测试机会$0.29
  • 增加 永久 测试月卡$0.79
  • 500个单词上限$0.99
Show 6 more
  • 1张补签卡$0.99
  • 800个单词上限$1.99
  • 1800个单词上限$3.99
  • 4000个单词上限2 variants$7.99
  • 8000个单词上限2 variants$12.99
  • 16000个单词上限2 variants$24.99
12 purchases

知米背单词

One-time12
  • 600知米粒$0.99
  • 词根词缀助记1个月$0.99
  • 单词助记服务(1个月)$1.99
Show 9 more
  • 1800知米粒$2.99
  • 单词配图3个月$2.99
  • 词根词缀助记3个月$2.99
  • 3000知米粒$3.99
  • 6800知米粒$9.99
  • 单词助记服务(12个月)$9.99
  • 单词配图永久$12.99
  • 词根词缀助记永久$12.99
  • 单词助记服务(永久)$12.99

Questions

Is 墨墨背单词 | 四六级考研等英语词汇记忆 free?
墨墨背单词 | 四六级考研等英语词汇记忆 is free to download, with in-app purchases available.
Is 知米背单词 free?
知米背单词 is free to download, with in-app purchases available.
Which has better reviews, 墨墨背单词 | 四六级考研等英语词汇记忆 or 知米背单词?
墨墨背单词 | 四六级考研等英语词汇记忆 and 知米背单词 are both rated 4.8 out of 5 on the App Store, from 5.5K and 460 ratings respectively.
Do 墨墨背单词 | 四六级考研等英语词汇记忆 or 知米背单词 have ads?
Neither 墨墨背单词 | 四六级考研等英语词汇记忆 nor 知米背单词 shows ads.
Which is updated more often, 墨墨背单词 | 四六级考研等英语词汇记忆 or 知米背单词?
墨墨背单词 | 四六级考研等英语词汇记忆 ships an update every 5 days, and 知米背单词 every 5 weeks. Most recently, 墨墨背单词 | 四六级考研等英语词汇记忆 was updated on September 23, 2026 and 知米背单词 on August 12, 2026.

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