# Think Math vs 읽어줘

The clearest difference is update cadence: 읽어줘 at daily against Think Math's every 3 weeks. Think Math's advantage is iOS requirement (13.0 vs 15.0). 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.

Think Math ships an update every 3 weeks, 읽어줘 daily. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Think Math | 읽어줘 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Ad-supported | — |
| Size | 46 MB | 23 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hasegi Inc.](https://appshunter.io/developer/1755968233) | [HYUNWOO LEE](https://appshunter.io/developer/1592216709) |

## What reviewers say

### 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


### 읽어줘

[App page](https://appshunter.io/ios/app/id6813870874)

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

**In-app purchases:** none


## Frequently asked questions

### Is Think Math free?

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

### Is 읽어줘 free?

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

### Do Think Math or 읽어줘 have ads?

Both Think Math and 읽어줘 show ads.

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

Think Math ships an update every 3 weeks, and 읽어줘 daily. Most recently, Think Math was updated on October 8, 2026 and 읽어줘 on October 7, 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.*