# Perio Brain vs Nosht

The clearest difference is in-app purchases: Perio Brain at none against Nosht's 2. Perio Brain also leads on iOS requirement (12.0 vs 15.1). Nosht's advantage is update cadence (fortnightly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Nosht sells 2 in-app purchases, starting at $29.99 per month. Perio Brain asks for nothing beyond the download.

Perio Brain ships an update every 3 months, Nosht fortnightly. The most recent releases landed on October 8, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Perio Brain | Nosht |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (37 ratings)](https://appshunter.io/ios/app/perio-brain/id1567282977/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 50 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [SHO Me Digital Ltd](https://appshunter.io/developer/1537565630) | [Nosht Limited](https://appshunter.io/developer/1890430881) |

## What reviewers say

### 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


### Nosht

[App page](https://appshunter.io/ios/app/nosht-dental-notes-and-scribe/id6761609708)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nosht Solo | $29.99 | per month |
| Nosht Pro | $49.99 | per month |


## Frequently asked questions

### Is Perio Brain free?

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

### Is Nosht free?

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

### Do Perio Brain or Nosht have ads?

Neither Perio Brain nor Nosht shows ads.

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

Perio Brain ships an update every 3 months, and Nosht fortnightly. Most recently, Perio Brain was updated on October 8, 2026 and Nosht on September 21, 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.*