# MERS.HK vs Parent MDM

The clearest difference is review sentiment: MERS.HK at 40% against Parent MDM's 0%. MERS.HK also leads on update cadence (every 5 months vs every 26 months). Parent MDM's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

MERS.HK ships an update every 5 months, Parent MDM every 26 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | MERS.HK | Parent MDM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (3 ratings)](https://appshunter.io/ios/app/parent-mdm/id1147683941/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 26 months |
| Monetization | Free | Free |
| Size | 2 MB | 43 MB |
| Requires iOS | 10.0 | **9.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [180c Limited](https://appshunter.io/developer/1449107536) |

## What reviewers say

### MERS.HK

[App page](https://appshunter.io/ios/app/mershk/id555592128)

This app provides students and teachers with an optimized experience for accessing and interacting with e-learning resources. Users can annotate screenshots, seamlessly connect with other educational tools, and enjoy a locked rotation for comfortable viewing.

**Highlights:** Optimized viewing and access to e-learning resources, Screenshot annotation and sharing, Seamless integration with other MERS apps, Automatic rotation lock for comfortable use, Designed for MERS e-Learning in Schools partners

**In-app purchases:** none


### Parent MDM

[App page](https://appshunter.io/ios/app/parent-mdm/id1147683941)

This app helps parents manage their children's school and leisure activities to foster family harmony. It's designed for busy parents seeking a convenient way to stay organized.

**Highlights:** Child activity management, School activity organization, Leisure activity planning, Family harmony focus, Convenient for busy parents

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MERS.HK free?

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

### Is Parent MDM free?

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

### Do MERS.HK or Parent MDM have ads?

Neither MERS.HK nor Parent MDM shows ads.

### Which is updated more often, MERS.HK or Parent MDM?

MERS.HK ships an update every 5 months, and Parent MDM every 26 months. Most recently, MERS.HK was updated on October 10, 2026 and Parent MDM on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*