# 서울취미교육 vs Think Math

The clearest difference is review sentiment: Think Math at 100% against 서울취미교육's 50%. Think Math also leads on update cadence (every 3 weeks vs every 73 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

서울취미교육 ships an update every 73 months, Think Math every 3 weeks. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 서울취미교육 | Think Math |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 73 months | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 32 MB | 46 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kyungjin Lee](https://appshunter.io/developer/572393811) | [Hasegi Inc.](https://appshunter.io/developer/1755968233) |

## What reviewers say

### 서울취미교육

[App page](https://appshunter.io/ios/app/id739002970)

**Features:** macOS Compatibility

**In-app purchases:** none


### Think Math

[App page](https://appshunter.io/ios/app/think-math-math-concept-map/id6763571781)

Explore math concepts from elementary to high school on a comprehensive map. Easily find specific topics with a three-step navigation system and reinforce learning with linked YouTube videos and textbook-quality typesetting.  Ideal for students, parents, and teachers seeking a visual understanding of mathematical connections.

**Highlights:** 802 math concepts map, Three-step navigation, Textbook-quality typesetting, Linked YouTube concept videos, Grade-level explanations, Concept cards with basic/advanced views, Listen and learn audio feature

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 서울취미교육 free?

서울취미교육 is free to download, with no in-app purchases.

### Is Think Math free?

Think Math is free to download, with no in-app purchases.

### Do 서울취미교육 or Think Math have ads?

Both 서울취미교육 and Think Math show ads.

### Which is updated more often, 서울취미교육 or Think Math?

서울취미교육 ships an update every 73 months, and Think Math every 3 weeks. Most recently, 서울취미교육 was updated on September 29, 2026 and Think Math on October 8, 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.*