Comparison

墨墨背单词 | 四六级考研等英语词汇记忆 vs HelloWord

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

HelloWord

This app helps you learn vocabulary on your Apple Watch, even offline. It offers instant pronunciation, example sentences, and quick word switching with gestures. It's designed for independent use without needing your iPhone nearby.

Highlights
  • Independent Apple Watch operation
  • Offline pronunciation
  • Example sentence viewing
  • Gesture-based word switching
  • Supports iPhone and iPad
Features
Read full description

专为 Apple Watch 设计,离线刷词,即时发音。 核心功能 - 独立运行:无需 iPhone,手表端独立使用 - 离线发音:点击音标,即刻朗读,无需联网 - 例句查看:轻触底部箭头,展开例句 - 手势切换:双指捏合,快速切词 联系作者 邮箱:toliuxuan@icloud.com 小红书:@轩爱写代码 隐私条款 使用条款: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 隐私政策: https://daxuan90.github.io/helloword-privacy/ 致谢 Icons: OpenMoji (CC BY-SA 4.0)

Screenshots

墨墨背单词 | 四六级考研等英语词汇记忆4 screens
HelloWord3 screens

Verdict

The call

The clearest difference is review sentiment: 墨墨背单词 | 四六级考研等英语词汇记忆 at 92% against HelloWord's 83%. 墨墨背单词 | 四六级考研等英语词汇记忆 also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads 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. 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 HelloWord sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

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, HelloWord every 9 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
墨墨背单词 | 四六级考研等英语词汇记忆 versus HelloWord: 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HelloWord
PriceFreeFree
Rating4.8 (5.5K ratings) — better—
Positive reviews92.1% of reviews — better82.6% of reviews
Number of ratings5.5K — better—
Update frequencyEvery 5 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 — better18.0
Further details — not scored
Size240 MB40 MB
Age rating4+12+
DeveloperMaiMemo Inc.轩 刘

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%

HelloWord

Written reviews23 reviews
Positive82.6%
Neutral13.0%
Negative4.3%

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

HelloWord

Not enough reviews yet to summarise bugs or requests.

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
2 purchases

HelloWord

Subscriptions2
  • Word+ 月度会员$0.991 Month
  • Word+ 年度会员7 Days trial$7.991 Year

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 HelloWord free?
HelloWord is free to download, with in-app purchases available.
Do 墨墨背单词 | 四六级考研等英语词汇记忆 or HelloWord have ads?
Neither 墨墨背单词 | 四六级考研等英语词汇记忆 nor HelloWord 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 HelloWord?
墨墨背单词 | 四六级考研等英语词汇记忆 ships an update every 5 days, and HelloWord every 9 days. Most recently, 墨墨背单词 | 四六级考研等英语词汇记忆 was updated on September 24, 2026 and HelloWord on September 21, 2026.

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