# 食環署投考全攻略 FEHDReady vs HK Correctional Services Prep

The clearest difference is price: HK Correctional Services Prep at Free against 食環署投考全攻略 FEHDReady's $11.99. HK Correctional Services Prep also leads on iOS requirement (15.6 vs 18.6). 食環署投考全攻略 FEHDReady's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

HK Correctional Services Prep is free to download; 食環署投考全攻略 FEHDReady costs $11.99 up front. HK Correctional Services Prep sells 1 one-off in-app purchase. 食環署投考全攻略 FEHDReady asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 食環署投考全攻略 FEHDReady | HK Correctional Services Prep |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 18 MB | 93 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SUET MUI NG](https://appshunter.io/developer/1875673704) | [Pickmy AI](https://appshunter.io/developer/1869516043) |

## What reviewers say

### 食環署投考全攻略 FEHDReady

[App page](https://appshunter.io/ios/app/fehdready/id6792496913)

**Features:** macOS Compatibility

**In-app purchases:** none


### HK Correctional Services Prep

[App page](https://appshunter.io/ios/app/hk-correctional-services-prep/id6795981685)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 180-Day Pro | $19.99 | one-time |


## Frequently asked questions

### Is 食環署投考全攻略 FEHDReady free?

食環署投考全攻略 FEHDReady costs $11.99, with no in-app purchases.

### Is HK Correctional Services Prep free?

HK Correctional Services Prep is free to download, with in-app purchases available.

### Do 食環署投考全攻略 FEHDReady or HK Correctional Services Prep have ads?

Neither 食環署投考全攻略 FEHDReady nor HK Correctional Services Prep shows ads.

### Which is updated more often, 食環署投考全攻略 FEHDReady or HK Correctional Services Prep?

食環署投考全攻略 FEHDReady ships an update every 4 days, and HK Correctional Services Prep every 4 days. Most recently, 食環署投考全攻略 FEHDReady was updated on October 3, 2026 and HK Correctional Services Prep 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.*