# 豌豆背单词 vs KET PET AAA

The clearest difference is price: 豌豆背单词 at $0.99 against KET PET AAA's $9.99. 豌豆背单词 also leads on update cadence (every 6 weeks vs every 13 months) and iOS requirement (11.0 vs 13.2). KET PET AAA's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

豌豆背单词 costs $0.99 and KET PET AAA $9.99 up front. 豌豆背单词 sells 2 one-off in-app purchases. KET PET AAA asks for nothing beyond the download.

豌豆背单词 ships an update every 6 weeks, KET PET AAA every 13 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 豌豆背单词 | KET PET AAA |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | **[3.5 (16 ratings)](https://appshunter.io/ios/app/id1483597359/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 116 MB | 25 MB |
| Requires iOS | **11.0** | 13.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [冬雪 郝](https://appshunter.io/developer/1477839382) | [贞平 阮](https://appshunter.io/developer/1369966007) |

## What reviewers say

### 豌豆背单词

[App page](https://appshunter.io/ios/app/id1483597359)

This app uses the Ebbinghaus forgetting curve to help users memorize English vocabulary efficiently. It offers personalized study plans, custom word lists, and a reminder system to ensure consistent learning and retention.

**Highlights:** Ebbinghaus forgetting curve algorithm, Dynamic memory algorithm, Personalized study plans, Pre-selected and custom word lists, Smart reminders and check-in system, Customizable learning steps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 高级会员 | $0.99 | one-time |
| 扩展课程-新手财务课 | $0.99 | one-time |


### KET PET AAA

[App page](https://appshunter.io/ios/app/ket-pet-aaa/id1503472643)

**In-app purchases:** none


## Frequently asked questions

### Is 豌豆背单词 free?

豌豆背单词 costs $0.99, and also offers in-app purchases.

### Is KET PET AAA free?

KET PET AAA costs $9.99, with no in-app purchases.

### Do 豌豆背单词 or KET PET AAA have ads?

豌豆背单词 shows ads; KET PET AAA does not.

### Which is updated more often, 豌豆背单词 or KET PET AAA?

豌豆背单词 ships an update every 6 weeks, and KET PET AAA every 13 months. Most recently, 豌豆背单词 was updated on November 3, 2026 and KET PET AAA on October 27, 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.*