# 背duo分单词 vs 过目不忘单词

The clearest difference is rating: 过目不忘单词 at 5.0 against 背duo分单词's 3.8. 过目不忘单词 also leads on device support. 背duo分单词's advantage is in-app purchases (none vs 3) and ratings volume (4 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. 过目不忘单词 sells 3 one-off in-app purchases. 背duo分单词 asks for nothing beyond the download.

过目不忘单词 holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

## The numbers

| Metric | 背duo分单词 | 过目不忘单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/duo/id6451367077/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6463788127/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Size | 90 MB | 29 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Baijia Technology Co., Ltd.](https://appshunter.io/developer/1554599455) | [深圳市时间价值信息技术股份公司](https://appshunter.io/developer/1111135640) |

## What reviewers say

### 背duo分单词

[App page](https://appshunter.io/ios/app/duo/id6451367077)

This app helps users learn English vocabulary more efficiently using advanced memory techniques and real exam examples. It focuses on faster memorization, stronger retention, and practical application in test scenarios.

**Highlights:** Efficient vocabulary memorization, Advanced anti-forgetting techniques, Scene-based memory association, Real exam-sourced example sentences, Progress tracking and learning analysis, Intelligent summary and motivation system

**In-app purchases:** none


### 过目不忘单词

[App page](https://appshunter.io/ios/app/id6463788127)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3个月VIP会员 | $4.99 | one-time |
| 1年VIP会员 | $9.99 | one-time |
| 3年VIP会员 | $19.99 | one-time |


## Frequently asked questions

### Is 背duo分单词 free?

背duo分单词 is free to download, with no in-app purchases.

### Is 过目不忘单词 free?

过目不忘单词 is free to download, with in-app purchases available.

### Which has better reviews, 背duo分单词 or 过目不忘单词?

过目不忘单词 is rated higher. 背duo分单词 averages 3.8 out of 5 from 4 ratings, while 过目不忘单词 averages 5.0 from 1 ratings.

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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.*