# シャドディク vs Eiken Grade 1 3000 Vocabulary

The clearest difference is ads: シャドディク at none against Eiken Grade 1 3000 Vocabulary's shown. シャドディク also leads on update cadence (daily vs every 2 weeks) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. シャドディク sells 1 in-app purchase, starting at $9.99 per month and Eiken Grade 1 3000 Vocabulary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

シャドディク ships an update daily, Eiken Grade 1 3000 Vocabulary every 2 weeks. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | シャドディク | Eiken Grade 1 3000 Vocabulary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 108 MB | 176 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [StudyPeaks](https://appshunter.io/developer/901134689) | [Ryosuke Yokota](https://appshunter.io/developer/1464313903) |

## What reviewers say

### シャドディク

[App page](https://appshunter.io/ios/app/toeic/id6749894258)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $9.99 | per month |


### Eiken Grade 1 3000 Vocabulary

[App page](https://appshunter.io/ios/app/eiken-grade-1-3000-vocabulary/id6762497006)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $6.99 | one-time |


## Frequently asked questions

### Is シャドディク free?

シャドディク is free to download, with in-app purchases available.

### Is Eiken Grade 1 3000 Vocabulary free?

Eiken Grade 1 3000 Vocabulary is free to download, with in-app purchases available.

### Do シャドディク or Eiken Grade 1 3000 Vocabulary have ads?

Eiken Grade 1 3000 Vocabulary shows ads; シャドディク does not.

### Which is updated more often, シャドディク or Eiken Grade 1 3000 Vocabulary?

シャドディク ships an update daily, and Eiken Grade 1 3000 Vocabulary every 2 weeks. Most recently, シャドディク was updated on November 5, 2026 and Eiken Grade 1 3000 Vocabulary on November 9, 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.*