# 墨墨背单词 | 四六级考研等英语词汇记忆 vs 知米背单词

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.

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.

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.

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 24, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | 墨墨背单词 | 四六级考研等英语词汇记忆 | 知米背单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5.5K ratings)](https://appshunter.io/ios/app/id888483369/reviews) | [4.8 (460 ratings)](https://appshunter.io/ios/app/app/id893122685/reviews) |
| Number of ratings | **5.5K** | 460 |
| Positive reviews | 92.1% of reviews | **97.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 240 MB | 147 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MaiMemo Inc.](https://appshunter.io/developer/888483372) | [BlueBrain Educational Technology Co., Ltd.](https://appshunter.io/developer/893122688) |

## What reviewers say

### 墨墨背单词 | 四六级考研等英语词汇记忆

[App page](https://appshunter.io/ios/app/id888483369)

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:** macOS Compatibility, Game Controller support, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 增加 1 次测试机会 | $0.29 | one-time |
| 增加 永久 测试月卡 | $0.79 | one-time |
| 500个单词上限 | $0.99 | one-time |
| 1张补签卡 | $0.99 | one-time |
| 800个单词上限 | $1.99 | one-time |
| 1800个单词上限 | $3.99 | one-time |
| 4000个单词上限 | $7.99 | one-time |
| 8000个单词上限 | $12.99 | one-time |
| 16000个单词上限 | $24.99 | one-time |

**What reviewers like**

- 👍 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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/app/id893122685)

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 600知米粒 | $0.99 | one-time |
| 词根词缀助记1个月 | $0.99 | one-time |
| 单词助记服务(1个月) | $1.99 | one-time |
| 1800知米粒 | $2.99 | one-time |
| 单词配图3个月 | $2.99 | one-time |
| 词根词缀助记3个月 | $2.99 | one-time |
| 3000知米粒 | $3.99 | one-time |
| 6800知米粒 | $9.99 | one-time |
| 单词助记服务(12个月) | $9.99 | one-time |
| 单词配图永久 | $12.99 | one-time |
| 词根词缀助记永久 | $12.99 | one-time |
| 单词助记服务(永久) | $12.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Login issues on certain devices
- Inconsistent word definitions

**Requested features**

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


## Frequently asked 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 24, 2026 and 知米背单词 on August 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*