# MDM Calc vs PE Classifier

The clearest difference is in-app purchases: PE Classifier at none against MDM Calc's 1. PE Classifier also leads on update cadence (monthly vs every 3 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. MDM Calc sells 1 one-off in-app purchase. PE Classifier asks for nothing beyond the download.

MDM Calc ships an update every 3 months, PE Classifier monthly. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | MDM Calc | PE Classifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pe-classifier/id6781558435/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free |
| Size | 6 MB | 24 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [DOMINIC JUAN LEBRON](https://appshunter.io/developer/1877381876) | [Dawwod George](https://appshunter.io/developer/6781558437) |

## What reviewers say

### MDM Calc

[App page](https://appshunter.io/ios/app/mdm-calc-em-optimizer/id6759225468)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime Unlock | $19.99 | one-time |


### PE Classifier

[App page](https://appshunter.io/ios/app/pe-classifier/id6781558435)

This educational reference tool helps medical professionals and students understand and apply the latest acute pulmonary embolism classification system. It features interactive diagrams, a built-in checklist, and direct links to source guidelines for comprehensive learning.

**Highlights:** Full Category A-E classification with sub-stages, Interactive visual diagrams, Built-in HESTIA checklist, Optional local case log, Direct link to source guideline

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

**In-app purchases:** none


## Frequently asked questions

### Is MDM Calc free?

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

### Is PE Classifier free?

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

### Do MDM Calc or PE Classifier have ads?

Neither MDM Calc nor PE Classifier shows ads.

### Which is updated more often, MDM Calc or PE Classifier?

MDM Calc ships an update every 3 months, and PE Classifier monthly. Most recently, MDM Calc was updated on September 14, 2026 and PE Classifier on September 18, 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.*