# 四级词汇CET4核心必考单词专业版HD vs 走遍美国

The clearest difference is ads: 四级词汇CET4核心必考单词专业版HD at none against 走遍美国's shown. 四级词汇CET4核心必考单词专业版HD also leads on monetization model (free vs free with in-app purchases) and update cadence (monthly vs every 3 months). 走遍美国's advantage is ratings volume (819 vs 8). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. 四级词汇CET4核心必考单词专业版HD sells 1 one-off in-app purchase and 走遍美国 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

四级词汇CET4核心必考单词专业版HD holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 走遍美国 has 819 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 83% of 四级词汇CET4核心必考单词专业版HD's written reviews are positive against 80% of 走遍美国's.

四级词汇CET4核心必考单词专业版HD ships an update monthly, 走遍美国 every 3 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 四级词汇CET4核心必考单词专业版HD | 走遍美国 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/cet4hd/id616011687/reviews)** | [4.8 (819 ratings)](https://appshunter.io/ios/app/id1549641983/reviews) |
| Number of ratings | 8 | **819** |
| Positive reviews | **83.3% of reviews** | 79.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 102 MB | 624 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怡怡 沈](https://appshunter.io/developer/582667064) | [相芳 杨](https://appshunter.io/developer/598849573) |

## What reviewers say

### 四级词汇CET4核心必考单词专业版HD

[App page](https://appshunter.io/ios/app/cet4hd/id616011687)

This app helps users memorize English vocabulary for the CET-4 exam using the Ebbinghaus forgetting curve and a personalized learning sequence. It offers offline access, detailed word explanations, and smart task management for efficient long-term memory.

**Highlights:** Ebbinghaus forgetting curve learning, Personalized memory sequence adjustment, Offline vocabulary learning, Detailed word explanations with audio, Smart task management, Word collection and error tracking

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| YY背单词CET四级词汇完整版EN | $2.99 | one-time |


### 走遍美国

[App page](https://appshunter.io/ios/app/id1549641983)

Explore the United States with this comprehensive English learning app. It features a detailed map of all 50 states, authentic dialogues based on a New York family's life, and interactive tools for vocabulary and pronunciation practice. Improve your listening, speaking, and reading skills with this engaging resource.

**Highlights:** Interactive US map with state details, Authentic American English dialogues, Real-person audio pronunciation, English-Chinese bilingual text, On-demand word definitions and pronunciation, Vocabulary list creation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一个月无广告无限制使用权限 | $2.99 | one-time |
| 六个月(半年)无广告无限制使用权限 | $9.99 | one-time |
| 永久使用权限（一次付费，永久使用，无广告无使用限制） | $12.99 | one-time |


## Frequently asked questions

### Is 四级词汇CET4核心必考单词专业版HD free?

四级词汇CET4核心必考单词专业版HD is free to download, with in-app purchases available.

### Is 走遍美国 free?

走遍美国 is free to download, with in-app purchases available.

### Which has better reviews, 四级词汇CET4核心必考单词专业版HD or 走遍美国?

四级词汇CET4核心必考单词专业版HD is rated higher. 四级词汇CET4核心必考单词专业版HD averages 5.0 out of 5 from 8 ratings, while 走遍美国 averages 4.8 from 819 ratings.

### Do 四级词汇CET4核心必考单词专业版HD or 走遍美国 have ads?

走遍美国 shows ads; 四级词汇CET4核心必考单词专业版HD does not.

### Which is updated more often, 四级词汇CET4核心必考单词专业版HD or 走遍美国?

四级词汇CET4核心必考单词专业版HD ships an update monthly, and 走遍美国 every 3 months. Most recently, 四级词汇CET4核心必考单词专业版HD was updated on November 1, 2026 and 走遍美国 on November 7, 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.*