# MERS.HK vs Robo Wunderkind

The clearest difference is monetization model: MERS.HK at free against Robo Wunderkind's free with in-app purchases. MERS.HK also leads on iOS requirement (10.0 vs 15.0). Robo Wunderkind's advantage is update cadence (every 2 months vs every 5 months) and device support (4 vs 1). On price, review sentiment, 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.

MERS.HK ships an update every 5 months, Robo Wunderkind every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MERS.HK | Robo Wunderkind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (6 ratings)](https://appshunter.io/ios/app/robo-wunderkind/id1546887179/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 40.0% of reviews | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 295 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [Robo Wunderkind, Inc.](https://appshunter.io/developer/6797845726) |

## 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


### Robo Wunderkind

[App page](https://appshunter.io/ios/app/robo-wunderkind/id1546887179)

Build and program robots using colorful blocks and an intuitive app. Explore three coding difficulty levels and interactive tutorials to bring your creations to life. No prior coding experience is necessary to start learning STEM concepts through play.

**Highlights:** Build robots with colorful blocks, Code and control creations, Three programming difficulty levels, 19 interactive STEM tutorials, Offline play capability, Icon-based and Scratch-like coding modes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MERS.HK free?

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

### Is Robo Wunderkind free?

Robo Wunderkind is free to download, with no in-app purchases.

### Do MERS.HK or Robo Wunderkind have ads?

Neither MERS.HK nor Robo Wunderkind shows ads.

### Which is updated more often, MERS.HK or Robo Wunderkind?

MERS.HK ships an update every 5 months, and Robo Wunderkind every 2 months. Most recently, MERS.HK was updated on November 1, 2026 and Robo Wunderkind 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.*