# Altoida vs PrepNavigator

The clearest difference is rating: PrepNavigator at 5.0 against Altoida's 4.3. PrepNavigator also leads on update cadence (weekly vs monthly). Altoida's advantage is ratings volume (29 vs 5) and iOS requirement (13.0 vs 16.0). 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.

PrepNavigator holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Altoida has 29 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Altoida ships an update monthly, PrepNavigator weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Altoida | PrepNavigator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (29 ratings)](https://appshunter.io/ios/app/altoida/id1133610450/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/prepnavigator/id6769608370/reviews)** |
| Number of ratings | **29** | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | Free |
| Size | 84 MB | 9 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Altoida AG](https://appshunter.io/developer/1133610449) | [Prep X Medical, Inc](https://appshunter.io/developer/1896673060) |

## 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


### PrepNavigator

[App page](https://appshunter.io/ios/app/prepnavigator/id6769608370)

This app simplifies colonoscopy preparation with personalized instructions, timelines, and medication reminders. It offers an AI assistant for questions and secure, HIPAA-compliant access to your health information.

**Highlights:** Personalized prep instructions, Step-by-step preparation timeline, Medication hold reminders, Dietary guides, AI-powered prep assistant, Secure access

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

**In-app purchases:** none


## Frequently asked questions

### Is Altoida free?

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

### Is PrepNavigator free?

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

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

PrepNavigator is rated higher. Altoida averages 4.3 out of 5 from 29 ratings, while PrepNavigator averages 5.0 from 5 ratings.

### Do Altoida or PrepNavigator have ads?

Neither Altoida nor PrepNavigator shows ads.

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

Altoida ships an update monthly, and PrepNavigator weekly. Most recently, Altoida was updated on October 24, 2026 and PrepNavigator 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.*