# MBSC vs SIMPL

The clearest difference is review sentiment: SIMPL at 40% against MBSC's 0%. SIMPL also leads on update cadence (every 2 weeks vs every 4 months). MBSC's advantage is rating (4.3 vs 4.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MBSC holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 6 and 16 respectively. Written reviews complicate that: 0% of MBSC's written reviews are positive against 40% of SIMPL's, so the app with the better star average is not the one people write more warmly about.

MBSC ships an update every 4 months, SIMPL every 2 weeks. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MBSC | SIMPL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/mbsc-weigh-the-odds/id1261031243/reviews)** | [4.1 (16 ratings)](https://appshunter.io/ios/app/simpl/id1660627978/reviews) |
| Number of ratings | 6 | **16** |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 22 MB | 36 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [The University of Michigan](https://appshunter.io/developer/380339599) | [Procedural Learning and Safety Collaborative, Inc](https://appshunter.io/developer/970265410) |

## What reviewers say

### MBSC

[App page](https://appshunter.io/ios/app/mbsc-weigh-the-odds/id1261031243)

This app provides healthcare providers with a tool to predict outcomes and VTE risk for bariatric surgery patients. It calculates projected weight loss, complication risks, and comorbidity resolution for common procedures. A VTE calculator offers risk-stratified treatment guidelines.

**Highlights:** Predict bariatric surgery outcomes, Calculate VTE risk, Project weight loss, Assess complication risk, Comorbidity resolution prediction, Risk-stratified treatment guidelines

**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 MBSC free?

MBSC 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, MBSC or SIMPL?

MBSC is rated higher. MBSC averages 4.3 out of 5 from 6 ratings, while SIMPL averages 4.1 from 16 ratings.

### Do MBSC or SIMPL have ads?

Neither MBSC nor SIMPL shows ads.

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

MBSC ships an update every 4 months, and SIMPL every 2 weeks. Most recently, MBSC was updated on November 4, 2026 and SIMPL on November 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.*