# Reaction Trainer

> Track reaction speed, memory, and focus with quick mini games

Canonical page: [https://chrome-stats.com/d/com.sacaslab.reactiontrainer](https://chrome-stats.com/d/com.sacaslab.reactiontrainer)

## Overview

- **ID:** `com.sacaslab.reactiontrainer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** サカス
- **Category:** GAME\_PUZZLE
- **Downloads:** 30
- **Version:** 1.0.1
- **Last updated:** 2026-06-14
- **First published:** 2026-06-13
- **Publisher country:** JP
- **Size:** 23 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.sacaslab.reactiontrainer)
- **Website:** [https://sacas-reaction-trainer.web.app](https://sacas-reaction-trainer.web.app/)
- **Privacy policy:** [https://sites.google.com/view/sacas-privacy-policy](https://sites.google.com/view/sacas-privacy-policy)

## Description

App name:<br>Reaction Trainer<br><br>Short description:<br>Track reaction speed, memory, and focus with quick mini games<br><br>Full description:<br>Reaction Trainer is a collection of quick mini games designed for entertainment and personal record keeping.<br><br>It includes four mini games: reaction speed, number tap, simple memory, and color judgment.<br>You can play during short breaks, commutes, or any free moment while tracking your own play results.<br><br>Included mini games:<br><br>Reaction Speed Test<br>Tap as soon as the signal changes and record your reaction time.<br>Tapping too early is recorded as a false start.<br><br>Number Tap Test<br>Tap randomly placed numbers in order, starting from 1.<br>Your completion time and mistakes are recorded.<br><br>Simple Memory Test<br>Memorize the displayed number sequence, then enter the same order after it disappears.<br>The app records correct answers, mistakes, accuracy, and response time.<br><br>Color Judgment Test<br>Judge whether the displayed color name matches the actual text color.<br>The app records accuracy, average reaction time, and the longest correct streak.<br><br>Main features:<br><br>* Three difficulty levels<br>* Score history<br>* Best and average scores<br>* Today’s best record<br>* Daily challenges<br>* Achievements and badges<br>* Weekly play count graph<br>* Local device rankings<br>* Sound and vibration settings<br>* Theme color settings<br>* Display language settings<br><br>Scores and history are saved locally on your device.<br>There is no login, user registration, or online ranking feature.<br><br>This app is intended for entertainment and personal record keeping.<br>It is not intended for medical diagnosis, treatment, or ability assessment.<br>The scores shown in the app are only a guide based on your play results within the app.<br><br>Screenshot order / captions:<br><br>1. Quick mini games for everyday play<br>2. Four simple training-style games<br>3. Track your reaction speed<br>4. Tap numbers in order<br>5. Challenge your memory<br>6. Judge colors quickly<br>7. See your records and progress<br>8. Customize the app to your style<br><br>Feature graphic text:<br>Reaction Trainer<br>Track reaction speed, memory, and judgment with mini games

## Rankings

- #2,445,529 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.sacaslab.reactiontrainer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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