# 놀려면공부 - Study Unlock > English vocabulary quiz before watching YouTube! "Study to Play" helps children develop smartphone control habits. Canonical page: [https://chrome-stats.com/d/com.studyunlock](https://chrome-stats.com/d/com.studyunlock) ## Overview - **ID:** `com.studyunlock` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Seoulization Inc. - **Category:** EDUCATION - **Downloads:** 23 - **Version:** 1.0.11 - **Last updated:** 2026-05-20 - **First published:** 2026-02-11 - **Publisher country:** KR - **Size:** 44 MB - **Data as of:** 2026-09-10 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.studyunlock) - **Website:** [https://www.bu-project.com](https://www.bu-project.com/) - **Privacy policy:** [https://www.bu-project.com/login/terms/studyunlock/privacy](https://www.bu-project.com/login/terms/studyunlock/privacy) ## Description "Are you watching YouTube again?" "Stop it and study!" It is time to end the daily smartphone war with 'Study to Play.' Instead of unconditionally taking away the device, help your child develop the habit of self-regulation and enjoying it confidently.

■ Key Features

Unlock by unlocking: When you open a blocked app like YouTube, Instagram, or TikTok, an English vocabulary quiz appears first.

Free time based on how much you study: Free time is granted only for the number of correct answers. Teach them the sense of accomplishment from earning and spending on their own.

Grade-specific vocabulary: From essential elementary vocabulary to CSAT-level words, words perfectly suited to your child's skill level are provided daily.

Real-time Parent Report: Check in real-time which apps your child used, how much they used them, and how many words they memorized today, giving you peace of mind.

Prevents Short-form Addiction: Stop meaningless scrolling and wake up the brain with a 1-minute English study session.

[Accessibility Service Usage Guide]

'Study to Play' uses the Android Accessibility Service to provide parent-approved child learning management features. This permission is used to perform the following core functions:

• Detects execution commands for managed apps (SNS, games, etc.) set by parents in real time.

• Displays a block screen that restricts the use of managed apps until the child completes designated learning tasks (such as English vocabulary quizzes).

• Controls the app so that it can be used for the allowed time only when learning conditions are met.

Data Security Notice:

Nolryeomyeosuguboo uses accessibility services solely for the purpose of managing children's app usage and detecting app executions to encourage learning. We do not collect, store, or transmit any valuable personal information, such as text, passwords, or messages entered by the user, through this API.

■ Recommended for:

Parents who are constantly nagging their children about their smartphone usage

Those who want to help their child improve their English skills in their spare time

Those who want to trust their child to manage themselves rather than simply confiscating their devices

Start 'Nolryeomyeosuguboo' right now and give your child the gift of a lifelong study habit! ## Rankings - #2,544,827 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.BIND_ACCESSIBILITY_SERVICE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_SPECIAL_USE` - `android.permission.INTERNET` - `android.permission.PACKAGE_USAGE_STATS` - `android.permission.POST_NOTIFICATIONS` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS` - `android.permission.SYSTEM_ALERT_WINDOW` - `android.permission.WAKE_LOCK` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.studyunlock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Study Then Play](https://chrome-stats.com/d/com.hayanilabs.studythenplay) — 94 users - [StudyToPlay: AI Quiz AppLock](https://chrome-stats.com/d/com.studytoplay.app) — 5 users - [10초만 - 영어 단어 암기](https://chrome-stats.com/d/com.junsookim.just10seconds) — 61 users - [LockdIn: CBSE Quiz Gate](https://chrome-stats.com/d/com.lockdin.app) — 25 users - [StudyLock: Focus & App Lock](https://chrome-stats.com/d/com.sophossoft.studylock) — 5,565 users - [QuizPass: Learn English](https://chrome-stats.com/d/com.ohlava.quizpass) — 104 users - [QuizBot - Learn & Unlock](https://chrome-stats.com/d/com.quizbot.android.blocker) — 115 users - [Child Lock: Math & IQ Puzzles](https://chrome-stats.com/d/com.smartparentlock) — 167 users - [HelpGlowUp](https://chrome-stats.com/d/app.helpglowup.mobile) — 77 users - [UnlockED App](https://chrome-stats.com/d/com.app.unlocked) — 42 users - [Lock'n'Learn – Scroll Less](https://chrome-stats.com/d/com.rebon.locknlearn) — 54 users - [SmartTime](https://chrome-stats.com/d/de.familie.smarttime) — 52 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.studyunlock)