# Operation Outbreak vs Grademelon

The clearest difference is in-app purchases: Operation Outbreak at none against Grademelon's 3. Operation Outbreak also leads on ads (none vs shown) and ratings volume (159 vs 46). Grademelon's advantage is rating (4.7 vs 4.4) and review sentiment (90% vs 67%). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. Grademelon sells 3 in-app purchases, starting at $0.99 per month. Operation Outbreak asks for nothing beyond the download.

Grademelon holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 159 and 46 respectively. Written reviews point the same way: 67% of Operation Outbreak's written reviews are positive against 90% of Grademelon's.

Operation Outbreak ships an update monthly, Grademelon every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Operation Outbreak | Grademelon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (159 ratings)](https://appshunter.io/ios/app/operation-outbreak/id1455638160/reviews) | **[4.7 (46 ratings)](https://appshunter.io/ios/app/grademelon/id6757350540/reviews)** |
| Number of ratings | **159** | 46 |
| Positive reviews | 66.7% of reviews | **90.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 37 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [THE BROAD INSTITUTE INC](https://appshunter.io/developer/900183025) | [JONATHAN MICHAEL SHAPIRO](https://appshunter.io/developer/1866305347) |

## What reviewers say

### Operation Outbreak

[App page](https://appshunter.io/ios/app/operation-outbreak/id1455638160)

Engage in a virtual pathogen outbreak simulation using Bluetooth. Learn about disease spread and prevention through interactive gameplay, quizzes, and teamwork. Requires a code from an organizer to participate.

**Highlights:** Bluetooth-enabled outbreak simulation, Learn disease prevention strategies, Interactive quizzes on biology and public health, Team-based gameplay, Simulate pathogen spread

**Features:** macOS Compatibility

**In-app purchases:** none


### Grademelon

[App page](https://appshunter.io/ios/app/grademelon/id6757350540)

Easily track your academic progress with this app. It allows you to log in once, add hypothetical assignments to see their impact on your grades, and quickly access attendance records and documents. Enjoy a faster, modern experience for managing your schoolwork.

**Highlights:** Auto login for saved credentials, Add hypothetical assignments, View attendance and documents, Faster, modern interface, Grade impact simulation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free / monthly | $0.99 | per month |
| Ad-free / yearly | $4.49 | per year |
| Lifetime Ad-free | $9.99 | one-time |


## Frequently asked questions

### Is Operation Outbreak free?

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

### Is Grademelon free?

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

### Which has better reviews, Operation Outbreak or Grademelon?

Grademelon is rated higher. Operation Outbreak averages 4.4 out of 5 from 159 ratings, while Grademelon averages 4.7 from 46 ratings.

### Do Operation Outbreak or Grademelon have ads?

Grademelon shows ads; Operation Outbreak does not.

### Which is updated more often, Operation Outbreak or Grademelon?

Operation Outbreak ships an update monthly, and Grademelon every 3 weeks. Most recently, Operation Outbreak was updated on October 24, 2026 and Grademelon 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.*