# Alz Test vs BioCog

The clearest difference is in-app purchases: BioCog at none against Alz Test's 3. BioCog also leads on update cadence (monthly vs every 3 months). Alz Test's advantage is iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Alz Test sells 3 in-app purchases, starting at $1.99 per month. BioCog asks for nothing beyond the download.

Alz Test ships an update every 3 months, BioCog monthly. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Alz Test | BioCog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/alz-test/id1506204695/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 55 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Clinical Selfie](https://appshunter.io/developer/1506204694) | [Lund University](https://appshunter.io/developer/583639460) |

## What reviewers say

### Alz Test

[App page](https://appshunter.io/ios/app/alz-test/id1506204695)

This app helps detect early signs of cognitive impairment, often linked to Alzheimer's disease, through a series of multiple-choice picture questions. It aims to monitor memory and cognition changes over time, encouraging prompt medical consultation for any concerns.

**Highlights:** Cognitive impairment detection, Early Alzheimer's signs, Picture-based multiple choice questions, Memory and cognition monitoring, Clinical research mimicry, Ongoing tracking

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly premium | $1.99 | per month |
| 3 Mothns | $4.99 | per 3 months |
| 12 Months | $14.99 | per year |


### BioCog

[App page](https://appshunter.io/ios/app/biocog/id6745024792)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alz Test free?

Alz Test is free to download, with in-app purchases available.

### Is BioCog free?

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

### Do Alz Test or BioCog have ads?

Neither Alz Test nor BioCog shows ads.

### Which is updated more often, Alz Test or BioCog?

Alz Test ships an update every 3 months, and BioCog monthly. Most recently, Alz Test was updated on October 22, 2026 and BioCog on October 28, 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.*