# MERS.HK vs LEAP E

The clearest difference is review sentiment: MERS.HK at 40% against LEAP E's 8%. LEAP E's advantage is update cadence (every 6 weeks vs every 5 months) and 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, LEAP E every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MERS.HK | LEAP E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **40.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 2 MB | 285 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) |

## 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


### LEAP E

[App page](https://appshunter.io/ios/app/leap-e-book/id1544220108)

This app provides interactive e-books for students focusing on health and drug education. It aims to equip young people with correct knowledge and social skills to prevent drug abuse and promote healthy lifestyles through engaging activities and flexible learning.

**Highlights:** Interactive learning activities, Computer games and videos, Flexible self-paced learning, Accessible on computers and tablets, Student progress tracking for teachers, Drug abuse prevention education

**In-app purchases:** none


## Frequently asked questions

### Is MERS.HK free?

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

### Is LEAP E free?

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

### Do MERS.HK or LEAP E have ads?

Neither MERS.HK nor LEAP E shows ads.

### Which is updated more often, MERS.HK or LEAP E?

MERS.HK ships an update every 5 months, and LEAP E every 6 weeks. Most recently, MERS.HK was updated on November 1, 2026 and LEAP E 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.*