# CRE英文運用 vs uLock@HKU

The clearest difference is price: uLock@HKU at Free against CRE英文運用's $7.99. CRE英文運用's advantage is update cadence (every 2 weeks vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

uLock@HKU is free to download; CRE英文運用 costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CRE英文運用 ships an update every 2 weeks, uLock@HKU every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CRE英文運用 | uLock@HKU |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Paid | — |
| Size | 2 MB | 14 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HIU WAI LIN](https://appshunter.io/developer/1368309222) | [The University of Hong Kong](https://appshunter.io/developer/451384643) |

## What reviewers say

### CRE英文運用

[App page](https://appshunter.io/ios/app/cre/id1368309223)

Enhance your English proficiency for the CRE exam with detailed explanations and practice questions. Improve comprehension, error identification, sentence completion, and paragraph improvement skills to achieve Level 2.

**Highlights:** Answer techniques for Comprehension, Error Identification, Sentence Completion, and Paragraph Improvement, Detailed explanations for each question, Randomly generated mock exams with timers, Progress and error rate tracking, Offline practice support, Bookmark and progress tracking features, Thematic classification for targeted practice

**Features:** Vision Pro support

**In-app purchases:** none


### uLock@HKU

[App page](https://appshunter.io/ios/app/ulockhku/id1477451541)

**In-app purchases:** none


## Frequently asked questions

### Is CRE英文運用 free?

CRE英文運用 costs $7.99, with no in-app purchases.

### Is uLock@HKU free?

uLock@HKU is free to download, with no in-app purchases.

### Do CRE英文運用 or uLock@HKU have ads?

Neither CRE英文運用 nor uLock@HKU shows ads.

### Which is updated more often, CRE英文運用 or uLock@HKU?

CRE英文運用 ships an update every 2 weeks, and uLock@HKU every 6 weeks. Most recently, CRE英文運用 was updated on November 2, 2026 and uLock@HKU on November 3, 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.*