# SAM4 Online vs ProxSIMity Simulation

The clearest difference is in-app purchases: ProxSIMity Simulation at none against SAM4 Online's 1. ProxSIMity Simulation also leads on update cadence (monthly vs every 6 months). SAM4 Online's advantage is iOS requirement (12.2 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. SAM4 Online sells 1 one-off in-app purchase. ProxSIMity Simulation asks for nothing beyond the download.

SAM4 Online ships an update every 6 months, ProxSIMity Simulation monthly. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | SAM4 Online | ProxSIMity Simulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sam4-online/id1615890331/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 28 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [3B Scientific](https://appshunter.io/developer/1407867777) | [ProxSIMity Inc.](https://appshunter.io/developer/1744491519) |

## What reviewers say

### SAM4 Online

[App page](https://appshunter.io/ios/app/sam4-online/id1615890331)

This interactive platform offers extensive simulated sound libraries and lesson guides for over 60 medical conditions. It provides students with easy access to class materials, quizzes, tests, and a virtual manikin for auscultation training.

**Highlights:** Simulated sounds library, Lesson guides for 60+ conditions, Virtual manikin simulator, Access to class materials, Quizzes and tests, Control physical manikin

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal User - Full Content | $19.99 | one-time |


### ProxSIMity Simulation

[App page](https://appshunter.io/ios/app/proxsimity-simulation/id6744665738)

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

**In-app purchases:** none


## Frequently asked questions

### Is SAM4 Online free?

SAM4 Online is free to download, with in-app purchases available.

### Is ProxSIMity Simulation free?

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

### Do SAM4 Online or ProxSIMity Simulation have ads?

Neither SAM4 Online nor ProxSIMity Simulation shows ads.

### Which is updated more often, SAM4 Online or ProxSIMity Simulation?

SAM4 Online ships an update every 6 months, and ProxSIMity Simulation monthly. Most recently, SAM4 Online was updated on September 18, 2026 and ProxSIMity Simulation on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*