# Brain Friend

> Train memory, focus, and calculation with simple daily exercises.

Canonical page: [https://chrome-stats.com/d/com.yslee.learn.plusminus](https://chrome-stats.com/d/com.yslee.learn.plusminus)

## Overview

- **ID:** `com.yslee.learn.plusminus`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** WONYAPPS
- **Category:** GAME\_EDUCATIONAL
- **Downloads:** 457
- **Version:** 6.0.2
- **Last updated:** 2026-07-23
- **First published:** 2019-10-21
- **Publisher country:** KR
- **Size:** 20 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.yslee.learn.plusminus)
- **Website:** [https://yslee149.blogspot.com](https://yslee149.blogspot.com/)
- **Privacy policy:** [https://yslee149.wixsite.com/wonsplus](https://yslee149.wixsite.com/wonsplus)

## Description

Brain Friend is a simple daily brain exercise app designed for quick, comfortable practice.<br><br>Train memory, focus, and calculation through clear, easy-to-follow activities. The app uses large text, simple layouts, and gentle interactions so you can start practicing without complicated rules.<br><br>Key features<br>- Memory training with number recall<br>- Focus exercises with clear answer choices<br>- Calculation practice at a calm pace<br>- Difficulty selection for number memory<br>- Daily results and correct answer tracking<br>- Streak tracking to support a steady habit<br><br>Open the app, start today’s workout, and build a light daily brain exercise routine one step at a time.

## Rankings

- #1,413,097 — 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.google.android.gms.permission.AD_ID`
- `com.yslee.learn.plusminus.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.yslee.learn.plusminus)