Comparison

King of Math vs Mental Math Trainer

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

Head to head
About

King of Math

Sharpen your mental math skills with this engaging game suitable for all ages. Progress through ranks by solving diverse math problems, earn achievements, and compete globally. It's a fun way to practice math for both kids and adults.

Highlights
  • Mental math practice
  • Diverse question types
  • Rank progression system
  • Achievements and leaderboards
  • Suitable for family play
Features
Read full description

Level up your math skills and become the King of Math! King of Math is a fun and fast-paced game for the whole family. The math level is about Middle school math (Grades 6–8), but the game suits anyone who wants to practice and improve their mental math — kids and adults alike. Start as a farmer and climb the ranks by solving math problems and improving your score. Challenge yourself with diverse question types, earn achievements, and compete on global leaderboards! Features: - Fun for both children and adults – perfect for family play - Improve your mental math speed with a variety of challenges - Collect stars, achievements, and compete on leaderboards - Free to get started with addition and subtraction – unlock all content with a one-time purchase Note for schools: A School Edition is also available, with all content unlocked and no in-app purchases ("King of Math: School Ed"). User comments: "I am pleasantly surprised at the different types of questions and how interesting this game is." - York HS math teacher “It will have you sharpening up your mental math skills without you even realizing it.” - The iPhone Mom "As a lifetime mathematician and a math tutor and teacher of over 20 years this is one of the most engaging ways to review math skills that I have ever seen." - App Store review

About

Mental Math Trainer

Enhance your arithmetic abilities with this app. Practice addition, subtraction, multiplication, and division through engaging games and custom sessions. Track your progress and challenge friends to boost your mental math confidence and speed.

Highlights
  • Addition, subtraction, multiplication, division practice
  • Math Arcade mode with increasing difficulty
  • Customizable practice sessions
  • Memory training games (Find the Pairs)
  • Progress tracking
  • Game Center integration for challenges
Features
Read full description

Practice and improve your math skills with Mental Math Trainer Games - Pure Math. Play and practice just a few minutes a day and keep your mind sharp. Great brain training for you to increase your confidence and speed at mental math. No matter if it's addition, subtraction, multiplication or division, we guarantee you hours of practice with Mental Math Trainer Games - Pure Math. And every time you play it's a different experience. Questions are always random. Great way to train and learn math. With its increasing difficulty, Mental Math Addition Games - Pure Math is suitable for all ages - kids, students, adults. Pure practice and learning. We store your progress, so you can continue where you left. The faster you answer the questions, the more points you get. In Math Arcade mode you get to complete math levels with increasing difficulty starting from the most basic tasks. The levels are divided into 5 main categories - Addition, Subtraction, Multiplication, Division, and Mixed Mode. Math Practice mode in Mental Math Addition Games - Pure Math allows you to create custom practice sessions depending on the operations you wish to train. You can also select custom practice duration, difficulty level, and custom numbers. Math games where you solve math problems and a great way to give your brain a workout and improve your cognitive function. Learning math tables has never been easier. Play Math Tables, repeat a few times a day, and train your memory. Multiplication tables, times tables, brain games, addition games, and more. Find the Pairs (Math Cards) is a math game where you match math cards by number or color until you find all pairs and clear the board. Cool math game to train your memory. Mental Math Addition Games - Pure Math supports Game Center, so you can compare your score to your friends' and even challenge them to see who's doing better in Math. Some levels in the app are free to play and you can unlock all features and levels (1200+) by upgrading to PRO. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

King of Math4 screens
Mental Math Trainer4 screens

Verdict

The call

King of Math and Mental Math Trainer both sit at 4.7 stars, but that hides the real split: 90% of King of Math's written reviews are positive against 58% of Mental Math Trainer's. King of Math also leads on ratings volume (3.1K vs 233). On price, rating, update cadence 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. King of Math sells 1 one-off in-app purchase and Mental Math Trainer sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

King of Math holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: King of Math has 3.1K ratings behind it against 233, so its average is the more settled of the two. Written reviews point the same way: 90% of King of Math's written reviews are positive against 58% of Mental Math Trainer's.

UpkeepUpdate frequency

King of Math ships an update every 3 weeks, Mental Math Trainer fortnightly. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
King of Math versus Mental Math Trainer: the parameters behind the verdict, then further details
ParameterKing of MathMental Math Trainer
PriceFreeFree
Rating4.7 (3.1K ratings) — better4.5 (233 ratings)
Positive reviews89.6% of reviews — better57.8% of reviews
Number of ratings3.1K — better233
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size170 MB50 MB
Age rating4+4+
DeveloperOddrobo Software ABStoyan Hristov

Customer experience

King of Math

All ratings3,092 ratings
Positive93.4%
Neutral3.8%
Negative2.8%
Written reviews405 reviews
Positive89.6%
Neutral4.0%
Negative6.4%

Mental Math Trainer

All ratings228 ratings
Positive89.5%
Neutral3.1%
Negative7.5%
Written reviews206 reviews
Positive57.8%
Neutral6.3%
Negative35.9%

User reviews

King of Math

From 3.1K App Store ratings

What we love

  • 🚀 Fast pace
  • 👍 Fun and challenging
  • 👍 Variety of math subjects
  • 👍 Helpful for learning and practicing
  • 👍 Good for brain training

Room to improve

  • 🐛 Incorrect answers shown as wrong
  • 💰 Requires payment to unlock full version
  • 👎 Basic graphics and visuals

Mental Math Trainer

From 233 App Store ratings

What we love

  • 🧠 Brain training and mental sharpness
  • 👍 Useful for math skills improvement
  • 🚀 Fast and easy to use
  • ✅ Good for daily practice
  • 💡 Gamifies math learning

Room to improve

  • 💸 Most features are paid/locked
  • 💰 Deceptive free version
  • 😩 Repetitive questions/levels
  • 🐌 Slow animations
  • 📱 UI can be improved (keypad style)

Bugs and requests

King of Math

Reported bugs

2 issues
  • Lost progress and purchases when reinstalling
  • Keyboard blocking UI elements

Requested features

5 requests
  • More advanced math topics
  • Ability to review wrong answers
  • Difficulty settings or modes
  • More levels and books to progress through
  • Explanations or examples for harder questions

Mental Math Trainer

Reported bugs

8 issues
  • App crashes or doesn't open
  • Purchases not unlocking features
  • In-app purchase issues
  • Timer continues when paused
  • Drag response not registering input
Show 3 more
  • Division section glitches
  • App stops working after updates
  • Purchased content locked again

Requested features

10 requests
  • Option to choose keypad style
  • More difficult levels
  • Infinite or custom exercise mode
  • Dark mode support
  • Landscape mode support
Show 5 more
  • Add 6-digit numbers
  • Streak feature (like Duolingo)
  • Option to choose difficulty level
  • Add more levels
  • Sandbox mode for custom questions

In-app purchases

1 purchases

King of Math

One-time1
  • Full Game$3.99
7 purchases

Mental Math Trainer

Subscriptions6
  • Unlimited Access$2.991 Month
  • Unlimited Access3 Days trial$2.997 Days
  • Unlimited Access7 Days trial2 variants$3.991 Month
Show 3 more
  • Unlimited Access$9.991 Year
  • Unlimited Access7 Days trial$12.991 Year
  • Unlimited Access2 variants$14.991 Year
One-time1
  • Unlock Everything$17.99

Questions

Is King of Math free?
King of Math is free to download, with in-app purchases available.
Is Mental Math Trainer free?
Mental Math Trainer is free to download, with in-app purchases available.
Which has better reviews, King of Math or Mental Math Trainer?
King of Math is rated higher. King of Math averages 4.7 out of 5 from 3.1K ratings, while Mental Math Trainer averages 4.5 from 233 ratings.
Do King of Math or Mental Math Trainer have ads?
Neither King of Math nor Mental Math Trainer shows ads.
Which is updated more often, King of Math or Mental Math Trainer?
King of Math ships an update every 3 weeks, and Mental Math Trainer fortnightly. Most recently, King of Math was updated on November 10, 2026 and Mental Math Trainer on November 6, 2026.

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