# Kai's Virtual Viewer vs Hippocampers

The clearest difference is update cadence: Kai's Virtual Viewer at every 2 months against Hippocampers's every 13 months. Hippocampers's advantage is iOS requirement (12.0 vs 15.0). 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.

Kai's Virtual Viewer ships an update every 2 months, Hippocampers every 13 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Kai's Virtual Viewer | Hippocampers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/kais-virtual-viewer/id1460744916/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Free | Free |
| Size | 351 MB | 71 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai's Education Limited](https://appshunter.io/developer/1460744915) | [arludo Pty Ltd](https://appshunter.io/developer/1023251086) |

## What reviewers say

### Kai's Virtual Viewer

[App page](https://appshunter.io/ios/app/kais-virtual-viewer/id1460744916)

This app brings physical robots to life in augmented reality, allowing users to code their movements and complete missions. It bridges the gap between the physical and virtual worlds for an interactive learning experience.

**Highlights:** Augmented Reality (AR) integration, Code robot movements, Complete virtual missions, Themed mat interaction, Cross-device coding (Kai Blockly), Virtual Reality (VR) mode available

**Features:** macOS Compatibility

**In-app purchases:** none


### Hippocampers

[App page](https://appshunter.io/ios/app/hippocampers/id1477937644)

Explore the brain's regions and functions through engaging gameplay. Navigate different areas of the brain in a campervan, identifying locations and their roles. This educational tool helps users, including teachers, understand brain anatomy and student comprehension.

**Highlights:** Explore brain regions in a campervan, Identify brain locations by function, Three distinct gameplay stages, Familiarize with brain anatomy, Track student comprehension

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kai's Virtual Viewer free?

Kai's Virtual Viewer is free to download, with no in-app purchases.

### Is Hippocampers free?

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

### Do Kai's Virtual Viewer or Hippocampers have ads?

Neither Kai's Virtual Viewer nor Hippocampers shows ads.

### Which is updated more often, Kai's Virtual Viewer or Hippocampers?

Kai's Virtual Viewer ships an update every 2 months, and Hippocampers every 13 months. Most recently, Kai's Virtual Viewer was updated on October 24, 2026 and Hippocampers on October 24, 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.*