# Altoida vs CANTAB

The clearest difference is rating: Altoida at 4.3 against CANTAB's 2.5. Altoida also leads on ratings volume (29 vs 2) and update cadence (monthly vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Altoida holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: Altoida has 29 ratings behind it against 2, so its average is the more settled of the two.

Altoida ships an update monthly, CANTAB every 3 months. The most recent releases landed on June 1, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Altoida | CANTAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (29 ratings)](https://appshunter.io/ios/app/altoida/id1133610450/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/cantab/id1547171492/reviews) |
| Number of ratings | **29** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 84 MB | 72 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Altoida AG](https://appshunter.io/developer/1133610449) | [Cambridge Cognition Limited](https://appshunter.io/developer/496596292) |

## What reviewers say

### Altoida

[App page](https://appshunter.io/ios/app/altoida/id1133610450)

Measure and monitor your brain health with this app-based tool. It uses advanced technology to analyze eye movement for cognitive assessment, providing educational insights. Consult healthcare professionals for personalized advice.

**Highlights:** Brain health measurement, Cognitive assessment aid, Eye movement analysis, Educational insights, Global user community

**In-app purchases:** none


### CANTAB

[App page](https://appshunter.io/ios/app/cantab/id1547171492)

This application is exclusively for registered study participants. It allows users to check in regularly to engage with research studies and monitor their personal progress.

**Highlights:** Study participation, Regular check-ins, Progress monitoring, Study updates

**In-app purchases:** none


## Frequently asked questions

### Is Altoida free?

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

### Is CANTAB free?

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

### Which has better reviews, Altoida or CANTAB?

Altoida is rated higher. Altoida averages 4.3 out of 5 from 29 ratings, while CANTAB averages 2.5 from 2 ratings.

### Do Altoida or CANTAB have ads?

Neither Altoida nor CANTAB shows ads.

### Which is updated more often, Altoida or CANTAB?

Altoida ships an update monthly, and CANTAB every 3 months. Most recently, Altoida was updated on June 1, 2026 and CANTAB on June 4, 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.*