# 知米背单词 vs 词根单词

The clearest difference is ratings volume: 知米背单词 at 460 against 词根单词's 3. 知米背单词 also leads on iOS requirement (9.0 vs 14.0). 词根单词's advantage is rating (5.0 vs 4.8) and update cadence (fortnightly vs every 5 weeks). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. 知米背单词 sells 12 one-off in-app purchases and 词根单词 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

词根单词 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 知米背单词 has 460 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 97% of 知米背单词's written reviews are positive against 100% of 词根单词's.

知米背单词 ships an update every 5 weeks, 词根单词 fortnightly. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 知米背单词 | 词根单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (460 ratings)](https://appshunter.io/ios/app/app/id893122685/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6462399651/reviews)** |
| Number of ratings | **460** | 3 |
| Positive reviews | 96.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 147 MB | 19 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BlueBrain Educational Technology Co., Ltd.](https://appshunter.io/developer/893122688) | [西安高分学视数字技术有限公司](https://appshunter.io/developer/1702992824) |

## What reviewers say

### 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


### 词根单词

[App page](https://appshunter.io/ios/app/id6462399651)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 35学习币 | $0.99 | one-time |
| 70学习币 | $0.99 | one-time |
| 140学习币 | $2.99 | one-time |
| 季卡会员 | $4.99 | one-time |
| 半年卡会员 | $5.99 | one-time |
| 350学习币 | $6.99 | one-time |
| 年卡会员 | $9.99 | one-time |
| 700学习币 | $14.99 | one-time |
| 永久会员 | $17.99 | one-time |
| 永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is 知米背单词 free?

知米背单词 is free to download, with in-app purchases available.

### Is 词根单词 free?

词根单词 is free to download, with in-app purchases available.

### Which has better reviews, 知米背单词 or 词根单词?

词根单词 is rated higher. 知米背单词 averages 4.8 out of 5 from 460 ratings, while 词根单词 averages 5.0 from 3 ratings.

### Do 知米背单词 or 词根单词 have ads?

Neither 知米背单词 nor 词根单词 shows ads.

### Which is updated more often, 知米背单词 or 词根单词?

知米背单词 ships an update every 5 weeks, and 词根单词 fortnightly. Most recently, 知米背单词 was updated on October 18, 2026 and 词根单词 on October 5, 2026.

---

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