Math Duel vs DIY Human Body
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math Duel
Engage in a fun, competitive math game for two players on a single device. Improve basic math skills and strategic thinking with customizable equations and modes. Ideal for classrooms or home practice, it encourages collaboration and personalized learning.
- Two-player split-screen mode
- Single player practice
- Customizable equations
- Teacher-adjustable settings
- Basic math skill improvement
- Strategic thinking development
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Math Duel - 2 Player Math Game Challenge a friend or go solo! Math Duel is the ultimate split-screen math game for kids, students, and classrooms. Two players compete head-to-head on the same device, making math practice fast, fun, and competitive. Perfect for Schools and Home Learning. Used by teachers worldwide, Math Duel turns math drills into exciting duels. Customize difficulty for each player independently, ideal for differentiated instruction and personalized learning. Why Kids and Teachers Love Math Duel: - 1 or 2 players on one device, no extra hardware needed - Split-screen mode built for tablets and phones - Customizable equations for addition, subtraction, multiplication and division - Adjustable difficulty per player, great for mixed-ability classrooms - Positive reinforcement keeps students motivated - Frustration-free design for all skill levels - Trusted with over 1 million games played Built for the Classroom, Fun Enough for Home. Whether it's math fact fluency practice, a classroom warm-up, or friendly competition at home, Math Duel makes arithmetic engaging for all ages. Students sharpen mental math skills without even realizing they're learning. Great for: - Elementary and middle school students - Teachers looking for EdTech tools - Parents seeking educational games for kids - Homeschool families Have a feature idea? Share it directly with Erik, the developer, from inside the app!
DIY Human Body
Explore the human body with engaging, hands-on activities and informative videos. Designed for families and educators, this app provides easy-to-follow instructions using common household materials to learn about health and bodily systems.
- Hands-on human body activities
- Step-by-step instructions
- Videos on body systems
- Health and wellness information
- Uses common household materials
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DIY Human Body, funded by the National Institutes of Health, allows families and educators to investigate and learn about the human body at home, at school, or anywhere you go! Developed by UC Berkeley’s The Lawrence Hall of Science. HANDS-ON ACTIVITIES Includes over a dozen easy to use, hands-on activities to learn about the human body and your health. Each activity includes step-by-step instructions that have been tested by educators, kids, and families. The activity materials are widely available and inexpensive—you probably have many of them in your home. VIDEOS View collections of videos about the human body and staying healthy! Learn about the various systems that keep your body going, how to stay strong and healthy.
Screenshots
Verdict
The clearest difference is rating: Math Duel at 4.5 against DIY Human Body's 3.6. Math Duel also leads on ratings volume (235 vs 5). DIY Human Body's advantage is in-app purchases (none vs 1) and review sentiment (75% vs 64%). On price, update cadence, ads and monetization model 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. Math Duel sells 1 one-off in-app purchase. DIY Human Body asks for nothing beyond the download.
Math Duel holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Math Duel has 235 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 64% of Math Duel's written reviews are positive against 75% of DIY Human Body's, so the app with the better star average is not the one people write more warmly about.
Math Duel ships an update every 6 weeks, DIY Human Body every 2 months. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.
| Parameter | Math Duel | DIY Human Body |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (235 ratings) — better | 3.6 (5 ratings) |
| Positive reviews | 64.4% of reviews | 75.0% of reviews — better |
| Number of ratings | 235 — better | 5 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 86 MB | 177 MB |
| Age rating | 4+ | 4+ |
| Developer | Ellie's Games, LLC | The Lawrence Hall of Science |
Customer experience
Math Duel
DIY Human Body
Bugs and requests
Math Duel
Reported bugs
8 issues- App keeps crashing
- Multiplication doesn't work well
- Division problems cannot be solved due to lack of decimal key
- Settings button resets score
- App freezes timer in single player when settings is pressed
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- Division rounds down, teaching incorrect math
- Paid app contains ads
- App keeps cutting off
Requested features
14 requests- Ability to focus on specific timestables
- Option to change operations and differentiation
- Support for older iPads
- Return to increments of 1 for numbers
- Add decimal point for division
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- Option to give both opponents the same problems
- Button to go back to menu
- Button to restart in menu
- Option for number of questions to win
- Pause or stop button
- Online mode
- Ability to disable sound
- Round to the tenths place
- Spinner for difficulty control
DIY Human Body
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Math Duel
- Unlock All Features$4.99
DIY Human Body
No in-app purchases









