# 日本地図ドリル Ext vs Think Why

The clearest difference is in-app purchases: 日本地図ドリル Ext at none against Think Why's 1. 日本地図ドリル Ext also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Think Why sells 1 one-off in-app purchase. 日本地図ドリル Ext asks for nothing beyond the download.

## The numbers

| Metric | 日本地図ドリル Ext | Think Why |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/think-why/id6799816213/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | — | Free with in-app purchases |
| Size | 63 MB | 51 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ryo itou](https://appshunter.io/developer/1435019729) | [放 徐](https://appshunter.io/developer/6793334686) |

## What reviewers say

### 日本地図ドリル Ext

[App page](https://appshunter.io/ios/app/ext/id1454983800)

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

**In-app purchases:** none


### Think Why

[App page](https://appshunter.io/ios/app/think-why/id6799816213)

This app teaches elementary students how to understand math word problems by breaking down the reasoning process into manageable steps. It focuses on conceptual understanding rather than just keyword matching. Users can access free content or unlock the full learning path with a one-time purchase.

**Highlights:** Step-by-step reasoning for word problems, Interactive models for visualization, Explanation of intermediate numbers, Answer checking against the story, Transferring reasoning to new contexts, Full learning path unlock

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Learning Path | $19.99 | one-time |


## Frequently asked questions

### Is 日本地図ドリル Ext free?

日本地図ドリル Ext is free to download, with no in-app purchases.

### Is Think Why free?

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

### Do 日本地図ドリル Ext or Think Why have ads?

Neither 日本地図ドリル Ext nor Think Why shows ads.

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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.*