# How It Works? vs KING OF MATH

The clearest difference is rating: KING OF MATH at 4.3 against How It Works?'s 3.9. KING OF MATH also leads on ratings volume (1.3K vs 69). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. How It Works? sells 4 in-app purchases, starting at $7.99 per month and KING OF MATH sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

KING OF MATH holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: KING OF MATH has 1.3K ratings behind it against 69, so its average is the more settled of the two. Written reviews point the same way: 37% of How It Works?'s written reviews are positive against 44% of KING OF MATH's.

How It Works? ships an update every 4 months, KING OF MATH every 5 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | How It Works? | KING OF MATH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (69 ratings)](https://appshunter.io/ios/app/how-it-works/id1233674557/reviews) | **[4.3 (1.3K ratings)](https://appshunter.io/ios/app/king-of-math-math-learner/id1491890239/reviews)** |
| Number of ratings | 69 | **1.3K** |
| Positive reviews | 36.8% of reviews | **44.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 340 MB | 102 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Learny Land](https://appshunter.io/developer/1380183676) | [wonderkind GmbH](https://appshunter.io/developer/408718588) |

## What reviewers say

### How It Works?

[App page](https://appshunter.io/ios/app/how-it-works/id1233674557)

Explore the wonders of our world through interactive games, animations, and explanations. This app makes learning about natural phenomena engaging and fun for children, fostering curiosity and understanding of the planet.

**Highlights:** Interactive games, Animations, Clear explanations, Big images, Experiments, Locutions for non-readers

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Learny Land Pass - Monthly | $7.99 | per month |
| Learny Land Pass - Monthly | $8.99 | per month |
| Learny Land Pass - Annual | $39.99 | per year |
| Learny Land Pass - Annual | $49.99 | per year |


### KING OF MATH

[App page](https://appshunter.io/ios/app/king-of-math-math-learner/id1491890239)

Master arithmetic operations like addition, subtraction, multiplication, and division with this engaging learning app. It features intuitive handwriting input and adaptive difficulty to suit all ages, making learning fun and effective.

**Highlights:** Addition practice, Subtraction practice, Multiplication practice, Division practice, Handwriting input, Adaptive difficulty, Reward system

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subtraction Deck | $1.99 | one-time |
| Large multiplication tables | $1.99 | one-time |
| Small multiplication tables | $1.99 | one-time |
| Division | $1.99 | one-time |
| Full Version Bundle | $4.99 | one-time |

**What reviewers like**

- 👍 Helps kids learn math
- 🚀 Motivates kids to learn faster
- 👍 Good for toddlers and young children
- 👍 Improves math skills

**What reviewers complain about**

- 🐛 Poor handwriting recognition, especially for numbers like 6, 9
- 🐛 Inconsistent recognition of correct answers
- 🐛 Frustrating for kids when it doesn't register their input
- 🐛 Needs better timer settings for beginners

**Reported bugs**

- Doesn't recognize simple numbers like 4 and 9
- Accepts wrong answers as correct
- Slow response time on some devices

**Requested features**

- Allow keyboard input or numeric keypad
- Calibration option for handwriting recognition
- Difficulty levels for different age groups
- More advanced math operations like multiplication and division


## Frequently asked questions

### Is How It Works? free?

How It Works? is free to download, with in-app purchases available.

### Is KING OF MATH free?

KING OF MATH is free to download, with in-app purchases available.

### Which has better reviews, How It Works? or KING OF MATH?

KING OF MATH is rated higher. How It Works? averages 3.9 out of 5 from 69 ratings, while KING OF MATH averages 4.3 from 1.3K ratings.

### Do How It Works? or KING OF MATH have ads?

Neither How It Works? nor KING OF MATH shows ads.

### Which is updated more often, How It Works? or KING OF MATH?

How It Works? ships an update every 4 months, and KING OF MATH every 5 months. Most recently, How It Works? was updated on October 24, 2026 and KING OF MATH on October 26, 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.*