Math Duel vs Number Line Math K2
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!
Number Line Math K2
This app helps young learners practice addition, subtraction, and comparison skills up to 20 using an interactive number line. Users can customize problems to focus on different unknown quantities and specific math facts.
- Addition and subtraction up to 20
- More Than/Less Than comparisons
- Interactive number line tool
- Customizable unknown quantities
- Selectable math facts to practice
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Practice addition and subtraction facts with sums and minuends to 20. Or work with "More Than" and "Less Than" sentences. For example: What number is 5 more than 6? What number is 3 less than 7? Use a number line as a tool for solving the problems. Adjust the options to include any combination of Result, Change, or Start as the unknown quantity. Select the facts to practice.
Screenshots
Verdict
The clearest difference is rating: Math Duel at 4.5 against Number Line Math K2's 1.0. Math Duel also leads on update cadence (every 6 weeks vs every 12 months) and ratings volume (236 vs 2). Number Line Math K2's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15.0). On price, 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. Number Line Math K2 asks for nothing beyond the download.
Math Duel holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Math Duel has 236 ratings behind it against 2, so its average is the more settled of the two.
Math Duel ships an update every 6 weeks, Number Line Math K2 every 12 months. The most recent releases landed on November 8, 2026 and November 1, 2026 respectively.
| Parameter | Math Duel | Number Line Math K2 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (236 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 64.4% of reviews | — |
| Number of ratings | 236 — better | 2 |
| Update frequency | Every 6 weeks — better | Every 12 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 86 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Ellie's Games, LLC | Classroom Focused Software |
Customer experience
Math Duel
Number Line Math K2
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
Number Line Math K2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Math Duel
- Unlock All Features$4.99
Number Line Math K2
No in-app purchases
Questions
Is Math Duel free?
Is Number Line Math K2 free?
Which has better reviews, Math Duel or Number Line Math K2?
Do Math Duel or Number Line Math K2 have ads?
Which is updated more often, Math Duel or Number Line Math K2?
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