# SAM4 Online vs BuzzU

The clearest difference is in-app purchases: BuzzU at none against SAM4 Online's 1. BuzzU also leads on update cadence (every 3 weeks vs every 6 months) and ratings volume (16 vs 1). SAM4 Online's advantage is ads (none vs shown) and iOS requirement (12.2 vs 15.1). On price, rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for SAM4 Online against 5.0 for BuzzU. That said, the two scores are not equally well evidenced: BuzzU has 16 ratings behind it against 1, so its average is the more settled of the two.

SAM4 Online ships an update every 6 months, BuzzU every 3 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SAM4 Online | BuzzU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sam4-online/id1615890331/reviews) | [5.0 (16 ratings)](https://appshunter.io/ios/app/buzzu-campus-radar/id6754003166/reviews) |
| Number of ratings | 1 | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 90 MB | 45 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [3B Scientific](https://appshunter.io/developer/1407867777) | [Eric Buswell](https://appshunter.io/developer/1846248863) |

## 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 |


### BuzzU

[App page](https://appshunter.io/ios/app/buzzu-campus-radar/id6754003166)

Discover free food, merchandise, and events happening on campus in real-time. This community-driven radar uses live pins on a map to help students find and grab freebies. Earn points for contributions and check-ins to redeem rewards.

**Highlights:** Live campus radar with real-time pins, Find free food, drinks, and events, Rewards shop for earned points, Equippable titles to display status, Smart notifications for new pins and updates, Crowdsourced and verified event information, Verified student access via university email

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAM4 Online free?

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

### Is BuzzU free?

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

### Which has better reviews, SAM4 Online or BuzzU?

SAM4 Online and BuzzU are both rated 5.0 out of 5 on the App Store, from 1 and 16 ratings respectively.

### Do SAM4 Online or BuzzU have ads?

BuzzU shows ads; SAM4 Online does not.

### Which is updated more often, SAM4 Online or BuzzU?

SAM4 Online ships an update every 6 months, and BuzzU every 3 weeks. Most recently, SAM4 Online was updated on October 18, 2026 and BuzzU on October 24, 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.*