Comparison

Kumon Audio vs Math Duel

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kumon Audio

This app provides audio content for students enrolled in Kumon English programs in Europe and Africa. It supports the development of vocabulary, grammar, and reading comprehension through listening exercises.

Highlights
  • Audio content for EFL students
  • Supports vocabulary development
  • Enhances grammar skills
  • Improves reading comprehension
  • Pronunciation practice
  • Word recognition support
Features
Read full description

This app is designed for Kumon students in Europe and Africa enrolled in one of the Kumon English programmes. Audio content is an integral part of the Kumon English as a Foreign Language (EFL) Programme. Listening to the English audio while following the content of the worksheets and textbooks helps to develop students’ vocabulary, grammar and reading comprehension skills. Audio content is also available for the early levels of the Kumon English Programme for native speakers, as additional support for the development of students’ word recognition, pronunciation and vocabulary, which are important foundations for their learning journey to an advanced level of comprehension and critical reading skills. If you are not yet a Kumon student, find your nearest centre here: www.kumon.org

About

Math Duel

Learn math through engaging gameplay with cute characters and relaxing music. Practice writing numbers and master all four basic operations with over a thousand exercises. Enjoy an ad-free, stress-free learning environment designed for kids of all ages.

Highlights
  • Ad-free experience
  • Number writing practice
  • Over 1000 exercises
  • Addition, subtraction, multiplication, division
  • Cute chibi characters
  • Constant content updates
Features
Read full description

Discover a cute and fun way to learn math with adorable chibi characters and relaxing music. Just write the numbers with your finger and you're set: every correct answer becomes an achievement, and every mistake is a chance to learn stress-free through play. Recommended for kids of all ages, iMath offers a unique mathematical adventure featuring dozens of enchanting chibi characters, making learning even more enjoyable and personal! Download now and turn studying into a magical moment of fun! Features: - Ad-free experience! - Number writing practice! - More than one thousand exercises! - All math operations: addition, subtraction, multiplication, and division! - Constant updates with new content! App Subscription: You can subscribe to gain full access to the complete list of math lessons. Payment will be charged to your iTunes account upon confirmation of purchase. You will be able to perform all exercises during the subscription period. The subscription automatically renews at the same price and duration as the original package ("one week"/"one month"/"one year"), unless auto-renewal is turned off at least 24 hours before the end of the current period. The account renewal will be charged within 24 hours before the end of the current period at the cost of the chosen package (weekly, monthly, or yearly). Subscriptions may be managed by the user, and auto-renewal may be turned off by going to the user's iTunes account settings after purchase. No cancellation of the current subscription is allowed during the active subscription period. You can cancel a subscription during the free trial period through your iTunes account subscription settings. This must be done 24 hours before the end of the subscription period to avoid being charged. Visit: http://support.apple.com/kb/ht4098 for more information. You can turn off auto-renewal of your subscription via your iTunes account settings. However, you cannot cancel the current subscription during its active period. Any unused portion of a free trial period will be forfeited when the user purchases an app subscription. Links to our Terms of Service and Privacy Policy can be found below. Privacy Policy: https://www.mathgames.dev/privacy-policy.html Terms of Use: https://www.mathgames.dev/terms-of-service.html * Prices correspond to the same value determined by the "Apple App Store Pricing Matrix" as equivalent to the subscription price in $USD.

Screenshots

Kumon Audio4 screens
Math Duel4 screens

Verdict

The call

The clearest difference is review sentiment: Math Duel at 83% against Kumon Audio's 0%. Math Duel also leads on rating (4.7 vs 2.3) and update cadence (every 3 weeks vs every 7 months). Kumon Audio's advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 15.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Math Duel sells 4 in-app purchases, starting at $4.99 per 7 days. Kumon Audio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Math Duel holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: Math Duel has 426 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 0% of Kumon Audio's written reviews are positive against 83% of Math Duel's.

UpkeepUpdate frequency

Kumon Audio ships an update every 7 months, Math Duel every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard7 real differences · 3 level
Kumon Audio versus Math Duel: the parameters behind the verdict, then further details
ParameterKumon AudioMath Duel
PriceFreeFree
Rating2.3 (16 ratings)4.7 (426 ratings) — better
Positive reviews0.0% of reviews83.3% of reviews — better
Number of ratings16426 — better
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size6 MB728 MB
Age rating4+4+
DeveloperKumon Europe & Africa LimitedMath Games

Customer experience

Kumon Audio

All ratings8 ratings
Positive12.5%
Neutral25.0%
Negative62.5%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Math Duel

All ratings426 ratings
Positive92.0%
Neutral4.5%
Negative3.5%
Written reviews18 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Kumon Audio

No in-app purchases

4 purchases

Math Duel

Subscriptions4
  • Easy Math Game$4.997 Days
  • Easy Math$9.991 Month
  • Easy Math$24.991 Month
Show 1 more
  • Math Learner3 Days trial2 variants$29.991 Year

Questions

Is Kumon Audio free?
Kumon Audio is free to download, with no in-app purchases.
Is Math Duel free?
Math Duel is free to download, with in-app purchases available.
Which has better reviews, Kumon Audio or Math Duel?
Math Duel is rated higher. Kumon Audio averages 2.3 out of 5 from 16 ratings, while Math Duel averages 4.7 from 426 ratings.
Do Kumon Audio or Math Duel have ads?
Neither Kumon Audio nor Math Duel shows ads.
Which is updated more often, Kumon Audio or Math Duel?
Kumon Audio ships an update every 7 months, and Math Duel every 3 weeks. Most recently, Kumon Audio was updated on November 3, 2026 and Math Duel on November 7, 2026.

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