# 共通テスト対応英単語1800 vs Libry

The clearest difference is review sentiment: 共通テスト対応英単語1800 at 46% against Libry's 12%. 共通テスト対応英単語1800 also leads on iOS requirement (12.0 vs 15.0). Libry's advantage is update cadence (every 2 months vs every 18 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

共通テスト対応英単語1800 ships an update every 18 months, Libry every 2 months. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 共通テスト対応英単語1800 | Libry |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **46.0% of reviews** | 11.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 156 MB | 105 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [株式会社ナガセ](https://appshunter.io/developer/447743163) | [Libry Inc.](https://appshunter.io/developer/1031867351) |

## 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


### Libry

[App page](https://appshunter.io/ios/app/libry/id1147557530)

Transform your physical study materials into digital interactive lessons. This app analyzes your learning patterns to recommend challenging and forgettable questions, offering personalized study support. It allows you to search for specific problems and track your progress.

**Highlights:** Digital textbook viewer, Review forgotten questions, Practice difficult questions, Search problems by keyword, Track favorite and incorrect answers, Learning history

**Features:** Vision Pro support

**In-app purchases:** none


## 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 Libry free?

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

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

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

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

共通テスト対応英単語1800 ships an update every 18 months, and Libry every 2 months. Most recently, 共通テスト対応英単語1800 was updated on September 24, 2026 and Libry on September 21, 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.*