# 赤シート英単語帳 - 語源で覚える英単語

> Completely free and ad-free. This learning app allows you to efficiently memorize TOEIC and Eiken English vocabulary by learning its etymology.

Canonical page: [https://chrome-stats.com/d/com.koyama.redsheetandroid](https://chrome-stats.com/d/com.koyama.redsheetandroid)

## Overview

- **ID:** `com.koyama.redsheetandroid`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** KoyamaAtsushi
- **Category:** EDUCATION
- **Downloads:** 15,519
- **Version:** 4.0
- **Last updated:** 2026-05-20
- **First published:** 2026-03-30
- **Publisher country:** JP
- **Size:** 56 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.koyama.redsheetandroid)
- **Privacy policy:** [https://power-cheetah-a33.notion.site/2e67d4acdd5180238b23e40a333cc82e?pvs=73](https://power-cheetah-a33.notion.site/2e67d4acdd5180238b23e40a333cc82e?pvs=73)

## Description

[Completely Free &amp; Ad-Free] English Vocabulary App for Learning Through Etymology<br><br>Red Sheet Vocabulary is a learning app that allows you to efficiently memorize TOEIC and Eiken (English Proficiency Test) vocabulary by learning its etymology.<br><br>All features are completely free and ad-free. There are absolutely no in-app purchases.<br><br>◆ Understand &quot;Why it has that meaning&quot; through etymology<br><br>Instead of rote memorization, you can understand the origins of meaning from prefixes, roots, and suffixes.<br><br>Example: current<br>curr- (Latin currere = to run)<br>&quot;Something that flows and runs&quot; → flow, electric current, present<br><br>Once you understand this, you can easily learn related words such as currency, occur, and concur.<br><br>◆ Five Learning Modes<br><br>• Multiple Choice Quiz: Quickly check meanings<br>• Red Sheet: Hide Japanese translations and memorize words in a list<br>• Intensive Test: Focus on difficult words<br>• Time Attack: Measure your ability within a time limit<br>• Writing: Reinforce spelling by writing it out<br><br>◆ Supported Levels<br><br>【TOEIC】600 / 800 / 990<br>【Eiken】Grade 3 / Pre-2 / Grade 2<br><br>◆ Learning Support Features<br><br>• Text-to-Speech (Adjustable Speed)<br>• Visualization of Learning Data and Statistics<br>• Setting Daily and Weekly Word Goals<br>• Recording Consecutive Learning Days<br>• Switching between English-to-Japanese and Japanese-to-English Display<br>• Creating Custom Vocabulary Lists<br>• Adding Words to Existing Vocabulary Lists<br>• Notification Reminders<br><br>◆ Recommended for:<br><br>• TOEIC For those aiming for a score of 600-990<br>* Those planning to take the Eiken Grade 3-2 exam<br>* Those who struggle with rote memorization and prefer to understand words through their etymology<br>* Those looking for a free, ad-free app<br>* Those who want to study consistently every day<br><br>◆ Why is it free?<br><br>Developed by an individual with minimal development costs, it is completely free and ad-free.<br>All vocabulary lists, learning modes, and etymology data are available free of charge and without limits.<br><br>Please feel free to contact us with any questions or requests through the &quot;Contact Us&quot; section within the app.

## Rankings

- #476,656 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.google.android.providers.gsf.permission.READ_GSERVICES`
- `com.koyama.redsheetandroid.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.koyama.redsheetandroid)