# HKCEM e vs P.S. Q004

The clearest difference is iOS requirement: HKCEM e at 13.0 against P.S. Q004's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HKCEM e ships an update every 2 months, P.S. Q004 every 6 weeks. The most recent releases landed on November 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | HKCEM e | P.S. Q004 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 10 MB | 230 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG COLLEGE OF EMERGENCY MEDICINE LIMITED](https://appshunter.io/developer/1409609956) | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) |

## What reviewers say

### HKCEM e

[App page](https://appshunter.io/ios/app/hkcem-e-portfolio/id1409609957)

**Features:** macOS Compatibility

**In-app purchases:** none


### P.S. Q004

[App page](https://appshunter.io/ios/app/ps-q004/id6645736209)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HKCEM e free?

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

### Is P.S. Q004 free?

P.S. Q004 is free to download, with no in-app purchases.

### Do HKCEM e or P.S. Q004 have ads?

Neither HKCEM e nor P.S. Q004 shows ads.

### Which is updated more often, HKCEM e or P.S. Q004?

HKCEM e ships an update every 2 months, and P.S. Q004 every 6 weeks. Most recently, HKCEM e was updated on November 6, 2026 and P.S. Q004 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.*