# 知米背单词 vs 念念有词

The clearest difference is review sentiment: 知米背单词 at 97% against 念念有词's 0%. 知米背单词 also leads on rating (4.8 vs 4.4) and ratings volume (460 vs 16). 念念有词's advantage is in-app purchases (none vs 12) and update cadence (fortnightly vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 知米背单词 sells 12 one-off in-app purchases. 念念有词 asks for nothing beyond the download.

知米背单词 holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: 知米背单词 has 460 ratings behind it against 16, 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 0% of 念念有词's.

知米背单词 ships an update every 5 weeks, 念念有词 fortnightly. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 知米背单词 | 念念有词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (460 ratings)](https://appshunter.io/ios/app/app/id893122685/reviews)** | [4.4 (16 ratings)](https://appshunter.io/ios/app/id1379948642/reviews) |
| Number of ratings | **460** | 16 |
| Positive reviews | **96.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 147 MB | 144 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BlueBrain Educational Technology Co., Ltd.](https://appshunter.io/developer/893122688) | [Shanghai Squirrel Class AI Technology Ltd.](https://appshunter.io/developer/1435490039) |

## 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


### 念念有词

[App page](https://appshunter.io/ios/app/id1379948642)

This app helps primary and secondary school students learn English vocabulary. It offers synchronized learning with classroom content, intelligent review systems based on memory science, and practice exercises. It aims to improve test scores and provide a solid foundation in English.

**Highlights:** Synchronized classroom vocabulary learning, Intelligent anti-forgetting review system, AI + Ebbinghaus memory method, Multi-dimensional practice exercises, Customizable review plans, Includes all K-12 Chinese vocabulary

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 念念有词 free?

念念有词 is free to download, with no in-app purchases.

### Which has better reviews, 知米背单词 or 念念有词?

知米背单词 is rated higher. 知米背单词 averages 4.8 out of 5 from 460 ratings, while 念念有词 averages 4.4 from 16 ratings.

### Do 知米背单词 or 念念有词 have ads?

Neither 知米背单词 nor 念念有词 shows ads.

### Which is updated more often, 知米背单词 or 念念有词?

知米背单词 ships an update every 5 weeks, and 念念有词 fortnightly. Most recently, 知米背单词 was updated on October 18, 2026 and 念念有词 on October 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.*