# Cariogram vs Perio Brain

The clearest difference is ratings volume: Perio Brain at 40 against Cariogram's 1. Perio Brain also leads on update cadence (every 3 months vs every 8 months). Cariogram's advantage is rating (5.0 vs 4.8) and iOS requirement (8.0 vs 12.0). 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.

Cariogram holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Perio Brain has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Cariogram's written reviews are positive against 93% of Perio Brain's.

Cariogram ships an update every 8 months, Perio Brain every 3 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Cariogram | Perio Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cariogram-dental-caries-risk/id1378035435/reviews)** | [4.8 (40 ratings)](https://appshunter.io/ios/app/perio-brain/id1567282977/reviews) |
| Number of ratings | 1 | **40** |
| Positive reviews | **100.0% of reviews** | 92.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 7 MB | 50 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Wong Jun Ming](https://appshunter.io/developer/1112421570) | [SHO Me Digital Ltd](https://appshunter.io/developer/1537565630) |

## What reviewers say

### Cariogram

[App page](https://appshunter.io/ios/app/cariogram-dental-caries-risk/id1378035435)

This educational tool helps dental professionals understand dental caries risk. It visualizes interactions between various factors contributing to cavities, promoting preventive care. The program serves as a supplementary resource, not a replacement for professional judgment.

**Highlights:** Illustrates caries risk, Shows factor interactions, Promotes preventive measures, Educational program, For dental professionals

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

**In-app purchases:** none


### Perio Brain

[App page](https://appshunter.io/ios/app/perio-brain/id1567282977)

This app assists dental professionals in classifying periodontal disease using assessment values. It helps dentists and students formulate quicker diagnoses and treatment plans based on current guidance.

**Highlights:** Periodontitis diagnosis formulation, Periodontal disease classification, Evidence-based diagnostic tool, Treatment planning assistance, Utilizes latest published guidance

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cariogram free?

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

### Is Perio Brain free?

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

### Which has better reviews, Cariogram or Perio Brain?

Cariogram is rated higher. Cariogram averages 5.0 out of 5 from 1 ratings, while Perio Brain averages 4.8 from 40 ratings.

### Do Cariogram or Perio Brain have ads?

Neither Cariogram nor Perio Brain shows ads.

### Which is updated more often, Cariogram or Perio Brain?

Cariogram ships an update every 8 months, and Perio Brain every 3 months. Most recently, Cariogram was updated on November 2, 2026 and Perio Brain on November 7, 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.*