# POTTER vs Behind the Knife

The clearest difference is rating: POTTER at 4.4 against Behind the Knife's 4.0. POTTER also leads on iOS requirement (11.2 vs 15.0). Behind the Knife's advantage is update cadence (every 5 weeks vs every 8 months) and review sentiment (58% vs 50%). 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.

POTTER holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 5 and 19 respectively. Written reviews complicate that: 50% of POTTER's written reviews are positive against 58% of Behind the Knife's, so the app with the better star average is not the one people write more warmly about.

POTTER ships an update every 8 months, Behind the Knife every 5 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | POTTER | Behind the Knife |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/potter/id1364985773/reviews)** | [4.0 (19 ratings)](https://appshunter.io/ios/app/behind-the-knife/id1672420049/reviews) |
| Number of ratings | 5 | **19** |
| Positive reviews | 50.0% of reviews | **58.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 168 MB |
| Requires iOS | **11.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Interpretable AI LLC](https://appshunter.io/developer/1805627984) | [Behind the Knife](https://appshunter.io/developer/1672420051) |

## What reviewers say

### POTTER

[App page](https://appshunter.io/ios/app/potter/id1364985773)

This medical tool provides an accurate and user-friendly way to calculate emergency surgery risks. It's based on a machine learning algorithm derived from extensive research.

**Highlights:** Emergency surgery risk calculation, Machine learning algorithm, User-friendly interface, Based on published research, Highly accurate

**Features:** macOS Compatibility

**In-app purchases:** none


### Behind the Knife

[App page](https://appshunter.io/ios/app/behind-the-knife/id1672420049)

This platform offers surgical education with high-yield topics and interviews with field leaders. It provides timely, relevant, and engaging content to help users succeed in their medical studies and careers.

**Highlights:** Surgical education platform, High-yield educational topics, Interviews with field leaders, Timely and relevant content, Engaging learning experience

**In-app purchases:** none


## Frequently asked questions

### Is POTTER free?

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

### Is Behind the Knife free?

Behind the Knife is free to download, with no in-app purchases.

### Which has better reviews, POTTER or Behind the Knife?

POTTER is rated higher. POTTER averages 4.4 out of 5 from 5 ratings, while Behind the Knife averages 4.0 from 19 ratings.

### Do POTTER or Behind the Knife have ads?

Neither POTTER nor Behind the Knife shows ads.

### Which is updated more often, POTTER or Behind the Knife?

POTTER ships an update every 8 months, and Behind the Knife every 5 weeks. Most recently, POTTER was updated on September 29, 2026 and Behind the Knife on October 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.*