Comparison

Rule It Out! vs Math Duel School

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

Head to head
About

Rule It Out!

Challenge your mental math skills with this fast-paced game. Sort numbers based on given rules, from simple multiplication to complex exponents and fractions. Catch bonus boosts and unlock expert moves for high scores.

Highlights
  • Mental math challenges
  • Rule-based number sorting
  • Times tables practice
  • Fractions and decimals
  • Bonus boosts
  • Expert power moves
Features
Read full description

Rule it Out! is a game that will challenge your mental math skills to the extreme! Do you know your math rules? How fast can your fingers swipe? Begin with simple multiplication rules practicing times tables up to 10x10 or "Greater Than/Less Than" relativity questions. Once you've mastered that, work on your larger numbers, square numbers, cubed numbers, exponents, fractions and decimals. You are given a RULE to follow, then you must be quick with the fingers to sort out which numbers in the stream follow the rule or don't follow the rule. Be quick to catch the bonus boosts! Expert power moves are hidden to amp up the excitement. . . and the point possibilities! It's a great brain work-out for school, home or your commute. YOU RULE! appikiko, LLC is a proud member of the MomsWithApps community and we fully support the KNOW What's Inside program to protect children's online safety and privacy. Feel confident that this app: Does not collect personally identifiable information Does not generate any performance reports Does not contain in-app purchases Does not link to outside websites or social media without a "parental gate" Does not contain advertisements Let us know what you think: info@appikiko.com We LOVE to hear from our users!

About

Math Duel School

Engage in fun math competitions with friends or siblings, improving arithmetic skills for kids in grades K-5. Offers multiplayer modes and detailed progress tracking for parents and teachers.

Highlights
  • Multiplayer math duels
  • Grade K-5 skill coverage
  • Addition, subtraction, multiplication, division practice
  • Nearby and split-screen modes
  • Progress reports for parents
  • Customizable skill difficulty
Read full description

Kids! Now you can enjoy competing with your friends in class or with siblings at home with our brand new Monster Math - Multiplayer! Have fun and improve your math at the same time. We built an intelligent multiplayer game in which you can compete with kids of your own grade as well as with kids from completely different grades; on a single iPad or, across different devices! Parents and Teachers! Choose between Grades K - 5 and over 60 skills to help your kids do some good old arithmetic practice in a refreshingly new way. Our algorithm allows pairing of kids across different grades while keeping the difficulty level of the problems aligned to each kids’ grade level Monster Math - Duels gives kids 3 modes to engage in math duels with friends at school or at home, to practice math and do homework in an effective and a refreshingly new way! The 3 modes in Monster Math Duels are: Nearby Mode - Use this mode to let your kid play against other kids over a wi-fi or bluetooth connection. Split Screen Mode - This is one of the most loved features of the first Monster Math. And, it just got better! Use this mode to let your kids challenge each other or yourself in a game of math. Get to know your kids some more and have some quality family time together. (note: this mode is available only in iPads) vs. Computer Mode - Use this mode to hone your kids’ skills against self-adjusting difficulty levels at anytime of the day, even when there are no human opponents. Like Monster Math, Monster Math - Duels helps your child practice and learn over 40 skills within addition, subtraction, multiplication, division, like times tables as well as factors, multiples and also, prime numbers. It is suited for Grades 1 – 5, with all skills aligned to the Common Core Math standards. These skills are also fully customisable, thanks to standard skill presets, to suit your kids’ aptitude.A simple and intuitive toggle switch allows you to select advanced or basic skills which are presented as a neat progression within the parents section of the game.. You can also choose to get detailed reports and weekly emails to track how your kids are progressing in specific math topics. Unlike flash cards or simple quiz based apps, which only ask one question at a time. Monster Math is a great way to practice mental math and doing math drills, in a fun game environment. Regular play will lead to faster recall and use of Math facts. See the skills your child could be learning with Monster Math - Duels - Basic Geometry • Identify shapes on various attributes • Symmetry Addition & Subtraction • Addition up to 20 • Subtraction up to 20 • Two-digit addition without carry over • Two-digit subtraction without borrowing Multiplication & Division • Times Tables of 1 to 12 • Divide by numbers 1 to 12 • Multiply single-digit numbers by multiples of 10 Primes, Factors and Multiples Fractions • Visual representations (1/b, a/b) • Equivalence • Whole numbers as Fractions • Comparing fractions • Basic fraction addition Decimals • Decimal equivalents to given fractions and vice-versa Monster Math concentrates on following Common Core Standards: K.G.A.2, K.G.A.3, K.G.A.4, K.OA.A.5, 1.G.A.1, 1.G.A.3, 1.NBT.C.4, 1.OA.B.3, 2.G.A.1, 2.G.A.3, 2.NBT.B.5, 2.OA.B.2, 3.G.A.1, 3.OA.C.7, 3.NBT.A.2, 3.NBT.A.3, 3.NF.A.1, 3.NF.A.3, 4.G.A.3, 4.OA.A.1, 4.NF.A.2, 4.NF.B.3, 4.NF.C.6. Let your kids practice all of their basic math skills and problem solving while they have fun. Download Monster Math - Multiplayer now! For support, questions or comments, write to us at: support@makkajai.com Privacy policy: http://www.makkajai.com/privacy-policy Terms of Use: http://www.makkajai.com/terms

Screenshots

Rule It Out!4 screens
Math Duel School4 screens

Verdict

The call

The clearest difference is price: Rule It Out! at $0.99 against Math Duel School's $9.99. Rule It Out! also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 86%). Math Duel School's advantage is update cadence (monthly vs every 35 months) and ratings volume (99 vs 6). On ads, in-app purchases 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

Rule It Out! costs $0.99 and Math Duel School $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Rule It Out! holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Math Duel School has 99 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Rule It Out!'s written reviews are positive against 86% of Math Duel School's.

UpkeepUpdate frequency

Rule It Out! ships an update every 35 months, Math Duel School monthly. The most recent releases landed on September 6, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Rule It Out! versus Math Duel School: the parameters behind the verdict, then further details
ParameterRule It Out!Math Duel School
Price$0.99 — better$9.99
Rating5.0 (6 ratings) — better4.6 (99 ratings)
Positive reviews100.0% of reviews — better86.4% of reviews
Number of ratings699 — better
Update frequencyEvery 35 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.09.0 — better
Further details — not scored
Size39 MB181 MB
Age rating4+4+
Developerappikiko LLCMakkajai Edu Tech Private Limited

Customer experience

Rule It Out!

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Math Duel School

All ratings99 ratings
Positive87.9%
Neutral5.1%
Negative7.1%
Written reviews22 reviews
Positive86.4%
Neutral4.5%
Negative9.1%

In-app purchases

None

Rule It Out!

No in-app purchases

None

Math Duel School

No in-app purchases

Questions

Is Rule It Out! free?
Rule It Out! costs $0.99, with no in-app purchases.
Is Math Duel School free?
Math Duel School costs $9.99, with no in-app purchases.
Which has better reviews, Rule It Out! or Math Duel School?
Rule It Out! is rated higher. Rule It Out! averages 5.0 out of 5 from 6 ratings, while Math Duel School averages 4.6 from 99 ratings.
Do Rule It Out! or Math Duel School have ads?
Neither Rule It Out! nor Math Duel School shows ads.
Which is updated more often, Rule It Out! or Math Duel School?
Rule It Out! ships an update every 35 months, and Math Duel School monthly. Most recently, Rule It Out! was updated on September 6, 2026 and Math Duel School on October 8, 2026.

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