# Alzheimer AR vs Train4Science

Alzheimer AR and Train4Science are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Alzheimer AR ships an update every 3 months, Train4Science every 5 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Alzheimer AR | Train4Science |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Size | 189 MB | 146 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [proCampus GmbH](https://appshunter.io/developer/1513150595) | [Playersjourney GmbH](https://appshunter.io/developer/1461683218) |

## What reviewers say

### Alzheimer AR

[App page](https://appshunter.io/ios/app/alzheimer-ar/id1516583789)

**Features:** macOS Compatibility

**In-app purchases:** none


### Train4Science

[App page](https://appshunter.io/ios/app/train4science/id6462454803)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alzheimer AR free?

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

### Is Train4Science free?

Train4Science is free to download, with no in-app purchases.

### Do Alzheimer AR or Train4Science have ads?

Neither Alzheimer AR nor Train4Science shows ads.

### Which is updated more often, Alzheimer AR or Train4Science?

Alzheimer AR ships an update every 3 months, and Train4Science every 5 months. Most recently, Alzheimer AR was updated on November 3, 2026 and Train4Science 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.*