# SIMPL vs EBM Calculator

The clearest difference is rating: EBM Calculator at 5.0 against SIMPL's 4.1. SIMPL's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (16 vs 3). 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.

EBM Calculator holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: SIMPL has 16 ratings behind it against 3, so its average is the more settled of the two.

SIMPL ships an update every 2 weeks, EBM Calculator every 3 months. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SIMPL | EBM Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (16 ratings)](https://appshunter.io/ios/app/simpl/id1660627978/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ebm-calculator/id6737999201/reviews)** |
| Number of ratings | **16** | 3 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 37 MB | 14 MB |
| Requires iOS | **15.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Procedural Learning and Safety Collaborative, Inc](https://appshunter.io/developer/970265410) | [David Stewart](https://appshunter.io/developer/1778788927) |

## What reviewers say

### 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


### EBM Calculator

[App page](https://appshunter.io/ios/app/ebm-calculator/id6737999201)

This app helps medical professionals quickly interpret study results. It offers calculators for effect size, diagnostic test accuracy, and post-test probability, along with lessons and tutorials on evidence-based medicine.

**Highlights:** Effect Size Calculator, Diagnostic Test Accuracy Calculator, Post-Test Probability Calculator, Fagan Nomogram visualization, Save, Search, and Share results, Evidence-Based Medicine lessons, iCloud Sync

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIMPL free?

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

### Is EBM Calculator free?

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

### Which has better reviews, SIMPL or EBM Calculator?

EBM Calculator is rated higher. SIMPL averages 4.1 out of 5 from 16 ratings, while EBM Calculator averages 5.0 from 3 ratings.

### Do SIMPL or EBM Calculator have ads?

Neither SIMPL nor EBM Calculator shows ads.

### Which is updated more often, SIMPL or EBM Calculator?

SIMPL ships an update every 2 weeks, and EBM Calculator every 3 months. Most recently, SIMPL was updated on October 5, 2026 and EBM Calculator on October 2, 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.*