# MEL VR Science Simulations vs KAI Robotics

The clearest difference is in-app purchases: KAI Robotics at none against MEL VR Science Simulations's 8. MEL VR Science Simulations's advantage is review sentiment (56% vs 27%) and update cadence (every 2 months vs every 16 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. MEL VR Science Simulations sells 8 one-off in-app purchases. KAI Robotics asks for nothing beyond the download.

MEL VR Science Simulations holds the better App Store score, 3.8 against 3.6. That said, the two scores are not equally well evidenced: MEL VR Science Simulations has 90 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 56% of MEL VR Science Simulations's written reviews are positive against 27% of KAI Robotics's.

MEL VR Science Simulations ships an update every 2 months, KAI Robotics every 16 months. Both last shipped on October 14, 2026.

## The numbers

| Metric | MEL VR Science Simulations | KAI Robotics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (90 ratings)](https://appshunter.io/ios/app/mel-vr-science-simulations/id1369900784/reviews)** | [3.6 (12 ratings)](https://appshunter.io/ios/app/kai-robotics/id6447761719/reviews) |
| Number of ratings | **90** | 12 |
| Positive reviews | **56.1% of reviews** | 27.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 16 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.1 GB | 68 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEL Science Limited](https://appshunter.io/developer/988394505) | [Franckh-Kosmos Verlags GmbH & Co. KG](https://appshunter.io/developer/375309682) |

## What reviewers say

### MEL VR Science Simulations

[App page](https://appshunter.io/ios/app/mel-vr-science-simulations/id1369900784)

Explore chemistry and physics through immersive virtual reality simulations and interactive labs.  This app transforms learning complex scientific concepts into an engaging and entertaining experience, perfect for students and educators.

**Highlights:** Virtual reality science simulations, Interactive labs and lessons, Chemistry and physics curriculum alignment, Molecular and atomic level exploration, Interactive periodic table, Over 70 VR lessons, labs, and simulations

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atoms lessons pack | $9.99 | one-time |
| Periodic Table lessons pack | $9.99 | one-time |
| Molecules lessons pack | $9.99 | one-time |
| Gas Laws lessons pack | $9.99 | one-time |
| Isomerism lessons pack | $9.99 | one-time |
| Electrostatics lessons pack | $9.99 | one-time |
| Temperature lessons pack | $9.99 | one-time |
| Substances lessons pack | $9.99 | one-time |


### KAI Robotics

[App page](https://appshunter.io/ios/app/kai-robotics/id6447761719)

Build and control an AI robot using your device. Collect data, train the AI model with gestures and sounds, and then play with your robot. Offers remote control and customization options for the robot's LED display.

**Highlights:** Build an AI robot, Gesture recognition control, Sound recognition control, Train AI models, Offline data processing, Remote control mode, Customizable LED display

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MEL VR Science Simulations free?

MEL VR Science Simulations is free to download, with in-app purchases available.

### Is KAI Robotics free?

KAI Robotics is free to download, with no in-app purchases.

### Which has better reviews, MEL VR Science Simulations or KAI Robotics?

MEL VR Science Simulations is rated higher. MEL VR Science Simulations averages 3.8 out of 5 from 90 ratings, while KAI Robotics averages 3.6 from 12 ratings.

### Do MEL VR Science Simulations or KAI Robotics have ads?

Neither MEL VR Science Simulations nor KAI Robotics shows ads.

### Which is updated more often, MEL VR Science Simulations or KAI Robotics?

MEL VR Science Simulations ships an update every 2 months, and KAI Robotics every 16 months. Most recently, MEL VR Science Simulations was updated on October 14, 2026 and KAI Robotics on October 14, 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.*