# Math Study Step 1 vs 아추추랑 놀자 (한글단어놀이)

The clearest difference is in-app purchases: 아추추랑 놀자 (한글단어놀이) at none against Math Study Step 1's 1. 아추추랑 놀자 (한글단어놀이) also leads on ads (none vs shown). Math Study Step 1's advantage is update cadence (every 6 months vs every 15 months) and iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Math Study Step 1 sells 1 one-off in-app purchase. 아추추랑 놀자 (한글단어놀이) asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Math Study Step 1 against 5.0 for 아추추랑 놀자 (한글단어놀이). Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Math Study Step 1 ships an update every 6 months, 아추추랑 놀자 (한글단어놀이) every 15 months. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Math Study Step 1 | 아추추랑 놀자 (한글단어놀이) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/math-study-step-1/id684023031/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1089390761/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 222 MB | 73 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SOFTHEAVEN](https://appshunter.io/developer/588713602) | [Hyun-Su Kim](https://appshunter.io/developer/922728750) |

## What reviewers say

### Math Study Step 1

[App page](https://appshunter.io/ios/app/math-study-step-1/id684023031)

This app offers an engaging way to learn elementary arithmetic through interactive writing exercises. It utilizes a unique writing recognition system to enhance the learning experience, making math study enjoyable for young learners.

**Highlights:** Interactive writing exercises, Writing recognition system, Elementary arithmetic education, Enjoyable learning with 'Writing Princess', Dictation feature, Maximizes learning effectiveness

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADS | $1.99 | one-time |


### 아추추랑 놀자 (한글단어놀이)

[App page](https://appshunter.io/ios/app/id1089390761)

This educational app for young children uses bubble wrap popping as a fun way to learn Korean vocabulary. Developed with input from early childhood educators and parents, it offers 100 words categorized into five developmental stages with engaging visuals and authentic pronunciation.

**Highlights:** Bubble wrap popping game mechanic, 100 Korean vocabulary words, Five developmental learning stages, Authentic pronunciation by teacher, Progress tracking for parents, Engaging visuals for children

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Study Step 1 free?

Math Study Step 1 is free to download, with in-app purchases available.

### Is 아추추랑 놀자 (한글단어놀이) free?

아추추랑 놀자 (한글단어놀이) is free to download, with no in-app purchases.

### Which has better reviews, Math Study Step 1 or 아추추랑 놀자 (한글단어놀이)?

Math Study Step 1 and 아추추랑 놀자 (한글단어놀이) are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Math Study Step 1 or 아추추랑 놀자 (한글단어놀이) have ads?

Math Study Step 1 shows ads; 아추추랑 놀자 (한글단어놀이) does not.

### Which is updated more often, Math Study Step 1 or 아추추랑 놀자 (한글단어놀이)?

Math Study Step 1 ships an update every 6 months, and 아추추랑 놀자 (한글단어놀이) every 15 months. Most recently, Math Study Step 1 was updated on October 1, 2026 and 아추추랑 놀자 (한글단어놀이) on September 29, 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.*