# Dougaku 動画で英語 / 韓国語のシャドーイング学習 vs Structura

The clearest difference is in-app purchases: Dougaku 動画で英語 / 韓国語のシャドーイング学習 at none against Structura's 1. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Structura sells 1 one-off in-app purchase. Dougaku 動画で英語 / 韓国語のシャドーイング学習 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Dougaku 動画で英語 / 韓国語のシャドーイング学習 | Structura |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | **Free** | Freemium |
| Size | 26 MB | 100 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [ness, Inc.](https://appshunter.io/developer/1790990973) | [SNAPLACE](https://appshunter.io/developer/6790258232) |

## What reviewers say

### Dougaku 動画で英語 / 韓国語のシャドーイング学習

[App page](https://appshunter.io/ios/app/dougaku/id6781593628)

Learn English or Korean by watching your favorite videos. This app transforms any video into a learning tool, allowing you to practice listening, master phrases, and build vocabulary through engaging content.

**Highlights:** Learn English/Korean with favorite videos, Practice listening with English subtitles, Repeat phrases and practice pronunciation, Input natural English expressions, Vocabulary check and tests, Visualize learning progress

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

**In-app purchases:** none


### Structura

[App page](https://appshunter.io/ios/app/structura-element-synthesis/id6795030898)

Learn chemical reactions by playing a falling-block puzzle game. Combine elements and ions to build compounds, with over 350 reactions covered. Practice recall with quizzes and tests, and experiment freely with all elements.

**Highlights:** Falling-block puzzle gameplay, Element and ion combination, 356 chemical reactions covered, 46 learning stages, In-game quizzes and tests, Free experiment mode, Visual representation of compounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Units | $2.99 | one-time |


## Frequently asked questions

### Is Dougaku 動画で英語 / 韓国語のシャドーイング学習 free?

Dougaku 動画で英語 / 韓国語のシャドーイング学習 is free to download, with no in-app purchases.

### Is Structura free?

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

### Do Dougaku 動画で英語 / 韓国語のシャドーイング学習 or Structura have ads?

Neither Dougaku 動画で英語 / 韓国語のシャドーイング学習 nor Structura shows ads.

### Which is updated more often, Dougaku 動画で英語 / 韓国語のシャドーイング学習 or Structura?

Dougaku 動画で英語 / 韓国語のシャドーイング学習 ships an update every 4 days, and Structura every 4 days. Most recently, Dougaku 動画で英語 / 韓国語のシャドーイング学習 was updated on November 5, 2026 and Structura on November 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.*