# 墨墨背单词 | 四六级考研等英语词汇记忆 vs RepeatDuck

The clearest difference is update cadence: 墨墨背单词 | 四六级考研等英语词汇记忆 at weekly against RepeatDuck's every 2 months. 墨墨背单词 | 四六级考研等英语词汇记忆 also leads on ratings volume (5.6K vs 1) and iOS requirement (13.0 vs 15.0). On price, rating, ads and in-app purchases 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 RepeatDuck sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

RepeatDuck holds the better App Store score, 5.0 against 4.8. 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 5.6K ratings behind it against 1, so its average is the more settled of the two.

墨墨背单词 | 四六级考研等英语词汇记忆 ships an update weekly, RepeatDuck every 2 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 墨墨背单词 | 四六级考研等英语词汇记忆 | RepeatDuck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5.6K ratings)](https://appshunter.io/ios/app/id888483369/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/repeatduck-chinese-master/id6740007643/reviews)** |
| Number of ratings | **5.6K** | 1 |
| Positive reviews | 92.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 238 MB | 147 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MaiMemo Inc.](https://appshunter.io/developer/888483372) | [Chaojifeng (Xiamen) Network Technology Co., Ltd.](https://appshunter.io/developer/1779974143) |

## 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 |
| 1张补签卡 | $1.29 | one-time |
| 500个单词上限 | $1.79 | one-time |
| 800个单词上限 | $2.69 | one-time |
| 1800个单词上限 | $5.39 | one-time |
| 4000个单词上限 | $10.99 | one-time |
| 8000个单词上限 | $18.99 | one-time |
| 16000个单词上限 | $35.99 | 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


### RepeatDuck

[App page](https://appshunter.io/ios/app/repeatduck-chinese-master/id6740007643)

Master Chinese vocabulary with intelligent flashcards and spaced repetition. Features audio-based memorization, custom card creation, and detailed progress analytics. Learn efficiently with offline access and customizable reading modes.

**Highlights:** Audio-based memorization, Custom flashcard creation, Spaced repetition system, Progress tracking and analytics, Offline mode, Configurable learning languages

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $19.99 | one-time |


## 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 RepeatDuck free?

RepeatDuck 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 RepeatDuck?

RepeatDuck is rated higher. 墨墨背单词 | 四六级考研等英语词汇记忆 averages 4.8 out of 5 from 5.6K ratings, while RepeatDuck averages 5.0 from 1 ratings.

### Do 墨墨背单词 | 四六级考研等英语词汇记忆 or RepeatDuck have ads?

Neither 墨墨背单词 | 四六级考研等英语词汇记忆 nor RepeatDuck 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 RepeatDuck?

墨墨背单词 | 四六级考研等英语词汇记忆 ships an update weekly, and RepeatDuck every 2 months. Most recently, 墨墨背单词 | 四六级考研等英语词汇记忆 was updated on October 29, 2026 and RepeatDuck on October 21, 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.*