# LS Check vs SAM4 Online

The clearest difference is in-app purchases: LS Check at none against SAM4 Online's 1. SAM4 Online's advantage is iOS requirement (12.2 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | LS Check | SAM4 Online |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sam4-online/id1615890331/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 90 MB |
| Requires iOS | 14.0 | **12.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Elevate Healthcare, Inc.](https://appshunter.io/developer/1461064408) | [3B Scientific](https://appshunter.io/developer/1407867777) |

## What reviewers say

### LS Check

[App page](https://appshunter.io/ios/app/ls-check-in-application/id1531693544)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is LS Check free?

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

### Is SAM4 Online free?

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

### Do LS Check or SAM4 Online have ads?

Neither LS Check nor SAM4 Online shows ads.

### Which is updated more often, LS Check or SAM4 Online?

LS Check ships an update every 6 months, and SAM4 Online every 6 months. Most recently, LS Check was updated on September 9, 2026 and SAM4 Online 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.*