# 키즈토리 STEP 3 vs MathFriends

The clearest difference is review sentiment: MathFriends at 99% against 키즈토리 STEP 3's 10%. 키즈토리 STEP 3's advantage is in-app purchases (none vs 17) and iOS requirement (12.4 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MathFriends sells 17 one-off in-app purchases. 키즈토리 STEP 3 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 키즈토리 STEP 3 | MathFriends |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (13 ratings)](https://appshunter.io/ios/app/mathfriends-fun-math-for-kids/id1550930744/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | 10.0% of reviews | **98.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 392 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chunjae Education.Inc.](https://appshunter.io/developer/428912179) | [MathMaster](https://appshunter.io/developer/1550930746) |

## What reviewers say

### 키즈토리 STEP 3

[App page](https://appshunter.io/ios/app/step-3/id1209415807)

This app makes early Korean history fun and engaging for young children through 3D animations, craft activities, and traditional songs. It helps children explore historical sites and understand the wisdom of ancestors, fostering creative thinking.

**Highlights:** 3D animation history exploration, Interactive craft activities, Traditional songs and games, Understanding daily life connections, Curriculum-aligned learning

**In-app purchases:** none


### MathFriends

[App page](https://appshunter.io/ios/app/mathfriends-fun-math-for-kids/id1550930744)

This app offers systematic math learning for elementary students through daily lessons, timed challenges, and video tutorials. It incorporates fun games, avatar customization, and rewards to boost engagement and confidence. Parents can monitor progress in real-time via a connected app.

**Highlights:** Daily systematic learning, Timed math challenges, Learning videos, Math game center, Avatar customization, Parental progress tracking

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 일프로연산 1개월+1개월 이용권 | $24.99 | one-time |
| MathFriends 1 Month Pass | $24.99 | one-time |
| MathFriends 6 + 3 Months Pass | $59.99 | one-time |
| MathFriends 6 + 1 Months Pass | $59.99 | one-time |
| MathFriends 12 + 6 Months Pass | $79.99 | one-time |
| 일프로연산 이벤트 6개월 이용권 | $89.99 | one-time |
| 일프로연산 이벤트 6개월 이용권 (6개월 + 3개월) | $89.99 | one-time |
| MathFriends 6 Month Pass | $89.99 | one-time |
| 일프로연산 6개월 이용권(프로모션) | $94.99 | one-time |
| 일프로연산 6개월 이용권 | $99.99 | one-time |
| 일프로연산 6개월 이용권 (프로모션) | $99.99 | one-time |
| 일프로연산 1년 이용권 | $99.99 | one-time |
| 일프로연산 이벤트 1년 이용권 (1년 + 6개월) | $119.99 | one-time |
| 일프로연산 이벤트 1년 이용권 | $119.99 | one-time |
| MathFriends 12 Months Pass | $119.99 | one-time |
| 일프로연산 2년 이용권 | $129.99 | one-time |
| 일프로연산 1년 이용권 | $149.99 | one-time |


## Frequently asked questions

### Is 키즈토리 STEP 3 free?

키즈토리 STEP 3 is free to download, with no in-app purchases.

### Is MathFriends free?

MathFriends is free to download, with in-app purchases available.

### Do 키즈토리 STEP 3 or MathFriends have ads?

Neither 키즈토리 STEP 3 nor MathFriends shows ads.

### Which is updated more often, 키즈토리 STEP 3 or MathFriends?

키즈토리 STEP 3 ships an update monthly, and MathFriends monthly. Most recently, 키즈토리 STEP 3 was updated on October 23, 2026 and MathFriends on October 27, 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.*