# King of Math vs Mental Math Trainer

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.

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.

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.

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.

## The numbers

| Metric | King of Math | Mental Math Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.1K ratings)](https://appshunter.io/ios/app/king-of-math/id473904402/reviews)** | [4.5 (233 ratings)](https://appshunter.io/ios/app/mental-math-trainer-puremath/id684305542/reviews) |
| Number of ratings | **3.1K** | 233 |
| Positive reviews | **89.6% of reviews** | 57.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 170 MB | 50 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oddrobo Software AB](https://appshunter.io/developer/423545647) | [Stoyan Hristov](https://appshunter.io/developer/584595816) |

## What reviewers say

### King of Math

[App page](https://appshunter.io/ios/app/king-of-math/id473904402)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $3.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Lost progress and purchases when reinstalling
- Keyboard blocking UI elements

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/mental-math-trainer-puremath/id684305542)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $2.99 | per month |
| Unlimited Access | $2.99 | per 7 days |
| Unlimited Access | $3.99 | per month |
| Unlimited Access | $9.99 | per year |
| Unlimited Access | $12.99 | per year |
| Unlimited Access | $14.99 | per year |
| Unlock Everything | $17.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- App crashes or doesn't open
- Purchases not unlocking features
- In-app purchase issues
- Timer continues when paused
- Drag response not registering input

**Requested features**

- Option to choose keypad style
- More difficult levels
- Infinite or custom exercise mode
- Dark mode support
- Landscape mode support


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*