Operation Outbreak vs Grademelon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Operation Outbreak
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.
- Bluetooth-enabled outbreak simulation
- Learn disease prevention strategies
- Interactive quizzes on biology and public health
- Team-based gameplay
- Simulate pathogen spread
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The Operation Outbreak (OO) app uses Bluetooth to simulate the spread of a "virtual pathogen" through phones. Play an outbreak simulation with this app to learn how to stop the spread of disease by adopting preventive measures such as social distancing and mask wearing, answering quizzes about biology and public health, and working together as a team with the rest of the outbreak participants. You will need a code from a simulation organizer in order to play.
Grademelon
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.
- Auto login for saved credentials
- Add hypothetical assignments
- View attendance and documents
- Faster, modern interface
- Grade impact simulation
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Features: --Auto Login-- With Grademelon, login once and your information will be saved. No more typing in credentials every single time you want to glance at your grades. --Add hypothetical assignments-- No more waiting around for teachers to input grades and wondering how they'll affect you. Want to know what will happen if you get a B on that project? Just add an assignment for it and find out. --Attendance and Documents-- Tired of needing to wait through the slow web-portal to view your schedule and documents? Not anymore! Use Grademelon for a faster, cleaner, more modern experience. Grademelon is not affiliated with or endorsed by Edupoint or any school district. Use this app at your own risk. Subscription EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Operation Outbreak | Grademelon |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (159 ratings) | 4.7 (46 ratings) — better |
| Positive reviews | 66.7% of reviews | 90.0% of reviews — better |
| Number of ratings | 159 — better | 46 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 37 MB | 41 MB |
| Age rating | 4+ | 12+ |
| Developer | THE BROAD INSTITUTE INC | JONATHAN MICHAEL SHAPIRO |
Customer experience
Operation Outbreak
Grademelon
In-app purchases
Operation Outbreak
No in-app purchases
Grademelon
- Ad-free / monthly$0.991 Month
- Ad-free / yearly$4.491 Year
- Lifetime Ad-free$9.99
Questions
Is Operation Outbreak free?
Is Grademelon free?
Which has better reviews, Operation Outbreak or Grademelon?
Do Operation Outbreak or Grademelon have ads?
Which is updated more often, Operation Outbreak or Grademelon?
Other comparisons
