# POTTER vs SIMPL

The clearest difference is update cadence: SIMPL at every 2 weeks against POTTER's every 8 months. SIMPL also leads on ratings volume (16 vs 5). POTTER's advantage is rating (4.4 vs 4.1) and review sentiment (50% vs 40%). 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 4.1. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews point the same way: 50% of POTTER's written reviews are positive against 40% of SIMPL's.

POTTER ships an update every 8 months, SIMPL every 2 weeks. The most recent releases landed on June 1, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | POTTER | SIMPL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/potter/id1364985773/reviews)** | [4.1 (16 ratings)](https://appshunter.io/ios/app/simpl/id1660627978/reviews) |
| Number of ratings | 5 | **16** |
| Positive reviews | **50.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 37 MB |
| Requires iOS | **11.2** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Interpretable AI LLC](https://appshunter.io/developer/1805627984) | [Procedural Learning and Safety Collaborative, Inc](https://appshunter.io/developer/970265410) |

## 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


### SIMPL

[App page](https://appshunter.io/ios/app/simpl/id1660627978)

This app facilitates workplace-based assessments for medical professionals, enabling the evaluation of entrustable professional activities within medical education settings.

**Highlights:** Workplace-based assessments, Entrustable professional activities, Medical education implementation, Professional development tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is POTTER free?

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

### Is SIMPL free?

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

### Which has better reviews, POTTER or SIMPL?

POTTER is rated higher. POTTER averages 4.4 out of 5 from 5 ratings, while SIMPL averages 4.1 from 16 ratings.

### Do POTTER or SIMPL have ads?

Neither POTTER nor SIMPL shows ads.

### Which is updated more often, POTTER or SIMPL?

POTTER ships an update every 8 months, and SIMPL every 2 weeks. Most recently, POTTER was updated on June 1, 2026 and SIMPL on September 3, 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.*