# Surgical CogSim vs ReviseMD

The clearest difference is in-app purchases: Surgical CogSim at none against ReviseMD's 1. Surgical CogSim also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ReviseMD sells 1 one-off in-app purchase. Surgical CogSim asks for nothing beyond the download.

Surgical CogSim ships an update every 5 days, ReviseMD every 6 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Surgical CogSim | ReviseMD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 19 MB | 108 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [AMODISC LTD](https://appshunter.io/developer/1173813154) | [Sadler Studios Ltd](https://appshunter.io/developer/1861512767) |

## What reviewers say

### Surgical CogSim

[App page](https://appshunter.io/ios/app/surgical-cogsim/id6444360338)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReviseMD

[App page](https://appshunter.io/ios/app/revisemd-mla/id6756577324)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Version | $9.99 | one-time |


## Frequently asked questions

### Is Surgical CogSim free?

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

### Is ReviseMD free?

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

### Do Surgical CogSim or ReviseMD have ads?

ReviseMD shows ads; Surgical CogSim does not.

### Which is updated more often, Surgical CogSim or ReviseMD?

Surgical CogSim ships an update every 5 days, and ReviseMD every 6 days. Most recently, Surgical CogSim was updated on October 27, 2026 and ReviseMD on October 28, 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.*