# 共通テスト対応英単語1800 vs SigmaPlayer2

The clearest difference is in-app purchases: 共通テスト対応英単語1800 at none against SigmaPlayer2's 12. SigmaPlayer2's advantage is update cadence (every 2 months vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SigmaPlayer2 sells 12 one-off in-app purchases. 共通テスト対応英単語1800 asks for nothing beyond the download.

共通テスト対応英単語1800 ships an update every 18 months, SigmaPlayer2 every 2 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 共通テスト対応英単語1800 | SigmaPlayer2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 46.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 156 MB | 19 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [株式会社ナガセ](https://appshunter.io/developer/447743163) | [BUN-EIDO PUBLISHING CO.,LTD.](https://appshunter.io/developer/1082594050) |

## What reviewers say

### 共通テスト対応英単語1800

[App page](https://appshunter.io/ios/app/1800/id785904625)

Master essential English vocabulary for university entrance exams with this dedicated app. It covers 99.5% of the vocabulary tested on the Center Test and other university entrance exams, focusing on the 1800 most crucial words for high school students.

**Highlights:** Covers 99.5% of Center Test vocabulary, Focuses on 1800 essential words, Based on successful exam preparation methods, Designed for high school and university exam students, Master vocabulary quickly and completely

**Features:** Vision Pro support

**In-app purchases:** none


### SigmaPlayer2

[App page](https://appshunter.io/ios/app/sigmaplayer2/id1449804072)

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SWITCH Stage4 | $0.99 | one-time |
| SWITCH Stage5 | $0.99 | one-time |
| 単語帳カスタム再生機能 | $3.99 | one-time |
| ユニコンコミュニケーション2 CD | $4.99 | one-time |
| ユニコンコミュニケーション1 CD | $4.99 | one-time |
| グローブコミュニケーション2 CD | $4.99 | one-time |
| グローブコミュニケーション1 CD | $4.99 | one-time |
| グローブコミュニケーション3 CD | $4.99 | one-time |
| ユニコンコミュニケーション3 CD | $4.99 | one-time |
| Grove English Communication Ⅰ | $4.99 | one-time |
| Grove English Communication II | $4.99 | one-time |
| グローブ英語コミュニケーションⅢ | $4.99 | one-time |


## Frequently asked questions

### Is 共通テスト対応英単語1800 free?

共通テスト対応英単語1800 is free to download, with no in-app purchases.

### Is SigmaPlayer2 free?

SigmaPlayer2 is free to download, with in-app purchases available.

### Do 共通テスト対応英単語1800 or SigmaPlayer2 have ads?

Neither 共通テスト対応英単語1800 nor SigmaPlayer2 shows ads.

### Which is updated more often, 共通テスト対応英単語1800 or SigmaPlayer2?

共通テスト対応英単語1800 ships an update every 18 months, and SigmaPlayer2 every 2 months. Most recently, 共通テスト対応英単語1800 was updated on October 7, 2026 and SigmaPlayer2 on October 1, 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.*