# 英语四级必备词汇 vs CREW

The clearest difference is in-app purchases: CREW at none against 英语四级必备词汇's 1. CREW also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 英语四级必备词汇 sells 1 one-off in-app purchase. CREW asks for nothing beyond the download.

英语四级必备词汇 ships an update every 5 weeks, CREW every 6 weeks. The most recent releases landed on June 2, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 英语四级必备词汇 | CREW |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id492086533/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 179 MB | 144 MB |
| Requires iOS | 13.0 | **12** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [超 刘](https://appshunter.io/developer/476564378) | [大连鸿嘉船务咨询服务有限公司](https://appshunter.io/developer/1646394912) |

## What reviewers say

### 英语四级必备词汇

[App page](https://appshunter.io/ios/app/id492086533)

This app helps users efficiently learn and review core vocabulary for the CET-4 exam using the Ebbinghaus forgetting curve. It offers intelligent learning systems, diverse testing methods, and personalized study plans to track progress and master words.

**Highlights:** Ebbinghaus memory curve for spaced repetition, Separate new word learning and review, Multiple test modes (multiple choice, listening), Detailed word explanations (phonetics, definitions, examples), Calendar-based study progress tracking, Customizable exam plans and daily study goals, Personalized wordbook for difficult words

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 消除广告 | $0.99 | one-time |


### CREW

[App page](https://appshunter.io/ios/app/crew-cet/id6443482735)

**In-app purchases:** none


## Frequently asked questions

### Is 英语四级必备词汇 free?

英语四级必备词汇 is free to download, with in-app purchases available.

### Is CREW free?

CREW is free to download, with no in-app purchases.

### Do 英语四级必备词汇 or CREW have ads?

英语四级必备词汇 shows ads; CREW does not.

### Which is updated more often, 英语四级必备词汇 or CREW?

英语四级必备词汇 ships an update every 5 weeks, and CREW every 6 weeks. Most recently, 英语四级必备词汇 was updated on June 2, 2026 and CREW on September 8, 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.*