Comparison

ZIML vs kMath

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

Head to head
About

ZIML

This app offers daily math problems and solutions to sharpen reasoning and thinking skills across various school grades. It provides access to global math competitions, leaderboards, and forums for discussion.

Highlights
  • Daily math problems
  • Full solutions provided
  • Progress tracking
  • Global math contests
  • Leaderboards
  • Discussion forums
Features
Read full description

Zoom International Math League (ZIML) is the Areteem Institute's application for math practice and competitions all over the world. If you or your student want to keep the mind sharp by "zooming in" on math skills, look no further than the ZIML app! Straight from the minds of Areteem's experts, the free ZIML app offers "Daily Magic Spells" to test reasoning and thinking abilities by offering math problems every day from all grades of school. Topics covered include a wide range of mathematics, including: -Algebra -Geometry -Counting and Probability (Combinatorics) -Number Theory The free app features: -A free math problem each day (the Daily Magic Spells) -Full solutions to learn and improve -Account creation (free) to track your progress -Full integration with the ZIML web app (ziml.areteem.org) -Leaderboard of the Daily Magic Spells -Forums for Discussion and Challenging Weekly Brain Potions Subscription features: -Monthly Contests: Five divisions of math contests for various age ranges: --Division E: problem solving using the math concepts in standard math curriculum in upper elementary school students (grade 4&5) --Division M: problem solving using the math concepts in standard math curriculum in middle school students (grades 6-8) --Division H: problem solving using the math concepts in standard math curriculum in high school students (grades 9-12) --Junior Varsity Division: problem solving for students with experiences in math contests at the level of AMC 10 & 12. --Varsity Division: problem solving for students with advanced experiences in math contests at the level of AIME and higher. - Subscribe for 9.99$ per month to attempt the Monthly contest. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms of use: https://ziml.areteem.org/ziml/termsofuse.php

About

kMath

Prepare for the International Kangaroo Mathematics Contest with thousands of practice questions and explanations. Covers six levels from grade 1 to 12, with new content updated monthly. Offers an optional subscription for enhanced features.

Highlights
  • Thousands of practice questions
  • Detailed explanations
  • Six learning levels (grade 1-12)
  • Monthly content updates
  • Auto-renewing subscription option
  • Progress tracking
Features
Read full description

Users can prepare for IKMC - International Kangaroo Mathematics Contest with thousands of questions an explanations. New questions and explanations will be updated monthly. There are 6 levels from Pre-Ecolier to Student to practice with variety knowledge from grade 1 to 12. You can upgrade to PRO by purchasing an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • 3 month ($14.99) durations • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase • Privacy policy: https://sites.google.com/view/kangaroo-math-app • Terms of Use: https://sites.google.com/view/kmath-terms If you have any problems, please take a screenshot and send it to our email: izi.app.pro@gmail.com . Thank you so much.

Screenshots

ZIML4 screens
kMath4 screens

Verdict

The call

ZIML and kMath both sit at 4.3 stars, but that hides the real split: 71% of kMath's written reviews are positive against 50% of ZIML's. kMath also leads on update cadence (every 3 weeks vs every 2 months). ZIML's advantage is iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and ads 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. ZIML sells 1 in-app purchase, starting at $9.99 per month and kMath sells 1 in-app purchase, starting at $14.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for ZIML against 4.3 for kMath. Both are backed by a comparable volume of ratings — 7 and 6 respectively. Written reviews are what separate them: 50% of ZIML's written reviews are positive against 71% of kMath's.

UpkeepUpdate frequency

ZIML ships an update every 2 months, kMath every 3 weeks. The most recent releases landed on September 22, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
ZIML versus kMath: the parameters behind the verdict, then further details
ParameterZIMLkMath
PriceFreeFree
Rating4.3 (7 ratings)4.3 (6 ratings)
Positive reviews50.0% of reviews71.4% of reviews — better
Number of ratings7 — better6
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size54 MB69 MB
Age rating4+4+
DeveloperGyroDimensions, Inc.Yen Nguyen

Customer experience

ZIML

All ratings7 ratings
Positive71.4%
Neutral28.6%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

kMath

All ratings6 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral28.6%
Negative0.0%

In-app purchases

1 purchases

ZIML

Subscriptions1
  • Monthly Contest$9.991 Month
1 purchases

kMath

Subscriptions1
  • Member$14.993 Months

Questions

Is ZIML free?
ZIML is free to download, with in-app purchases available.
Is kMath free?
kMath is free to download, with in-app purchases available.
Which has better reviews, ZIML or kMath?
ZIML and kMath are both rated 4.3 out of 5 on the App Store, from 7 and 6 ratings respectively.
Do ZIML or kMath have ads?
Neither ZIML nor kMath shows ads.
Which is updated more often, ZIML or kMath?
ZIML ships an update every 2 months, and kMath every 3 weeks. Most recently, ZIML was updated on September 22, 2026 and kMath on October 5, 2026.

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