Math Duel vs Dekodiphukan
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!
Dekodiphukan
This app introduces children to the 44 sounds of the English language through a rhyming storybook. It's part of a comprehensive reading and writing curriculum designed for beginning readers and those who have struggled with literacy. The app offers audio support for pronunciation and repeated reading.
- Rhyming storybook format
- Introduces 44 English phonemes
- Connects sounds to pictures
- Audio reading support
- Part of a comprehensive curriculum
- No ads
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Center for Innovation in Education Dekodiphukan Storybook Dekodiphukan Description A children’s storybook written in rhyme. The first of the fourteen apps that comprise the Baratta-Lorton Reading Program. The Reading Program is a reading and writing curriculum for beginning readers and any child who has already experienced difficulty in learning to read. 99% unique – 100% effective - 100% free Background for the fourteen apps The Baratta-Lorton Reading Program also known as Dekodiphukan (pronounced decode if you can) was developed by the Center for Innovation in Education whose many other offerings include Mathematics Their Way, the first non-traditional math curriculum adopted in by the State of California. Dekodiphukan has been in use in classrooms across the United States and Canada since 1985. The Program has been used to teach thousands of children to read and to write regardless of background or supposed lack of reading readiness. To date, no child using the program in a classroom setting has ever failed to learn to read or to write. This Dekodiphukan reading and writing curriculum is now a series of fourteen apps plus a parent-guide for the iPad that, within a period of six months to a year (or occasionally a bit longer for some special needs children), will enable every child using it to read and to write. Reading with enjoyment. Writing creatively. Dekodiphukan is a full fledged curriculum. It is a set of specific learning activities, not a set of games. The curriculum’s fourteen apps are all free with no ads - popup or otherwise - included. While the apps may be downloaded all at once and stored in a folder on the iPad, no more than two or three of the apps are used at any one time by the child. Dekodiphukan Storybook The first of the Fourteen Apps Forty-four sounds or phonemes form the building blocks for every word spoken in English. The Dekodiphukan Storybook, written in rhyme, introduces children to these forty-four sounds and connects each sound to a picture that represents that sound. It is easier to correctly identify the sound of a phoneme when the phoneme is at the end of a word. Rhyming is used to facilitate correct sound-phoneme pronunciation. The events in the storybook provide the rationale for why each of forty-four sound pictures represents the particular sounds that it does. The Dekodiphukan Storybook is meant to be read initially by the parent to the child. A play button provides an audio reading for each page to assist parents who are unsure of pronunciations, or who prefer to listen along with their child as the story is being read. The audio reading of each page also permits the child to “read” and “reread” the storybook as often as he or she wishes, without waiting for an adult reader. Dekodiphukan STORYBOOK A children’s storybook written in rhyme Also available in book form through the Center’s website Introduces the 44 sounds of the English language Uses rhyme for clarity in sound identification To be read the first time by the parent to the child Parents unclear about pronouncements may play audios Child uses audio play buttons for subsequent readings Downloadable sound pictures for wall posting Downloadable Sound Summary for Parents
Screenshots
Verdict
The clearest difference is review sentiment: Dekodiphukan at 100% against Math Duel's 64%. Dekodiphukan also leads on in-app purchases (none vs 1). Math Duel's advantage is update cadence (every 6 weeks vs every 35 months) and rating (4.5 vs 4.2). On ads, monetization model and iOS requirement 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
Math Duel holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Math Duel has 236 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 64% of Math Duel's written reviews are positive against 100% of Dekodiphukan'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, Dekodiphukan every 35 months. The most recent releases landed on November 8, 2026 and November 1, 2026 respectively.
| Parameter | Math Duel | Dekodiphukan |
|---|---|---|
| Price | Free — better | — |
| Rating | 4.5 (236 ratings) — better | 4.2 (9 ratings) |
| Positive reviews | 64.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 236 — better | 9 |
| Update frequency | Every 6 weeks — better | Every 35 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 86 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Ellie's Games, LLC | Bob Baratta-Lorton |
Customer experience
Math Duel
Dekodiphukan
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
Dekodiphukan
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Math Duel
- Unlock All Features$4.99
Dekodiphukan
No in-app purchases









