# 틈틈봇-산업위생산업기사 (잠금화면에서 자동학습)+알람 > This is a lock screen study app created so that you can automatically study industrial hygiene industry technician exam questions one by one every time you turn on your phone. Canonical page: [https://chrome-stats.com/d/com.tmtmapp.indengindhygiene](https://chrome-stats.com/d/com.tmtmapp.indengindhygiene) ## Overview - **ID:** `com.tmtmapp.indengindhygiene` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** 틈틈봇 (잠금화면에서 틈틈이, 자동으로 시험공부) - **Category:** EDUCATION - **Downloads:** 361 - **Version:** 1.8.7 - **Last updated:** 2026-08-19 - **First published:** 2024-01-30 - **Publisher country:** KR - **Size:** 189 MB - **Data as of:** 2026-09-13 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.tmtmapp.indengindhygiene) - **Website:** [https://www.examscreen.com/](https://www.examscreen.com/) - **Privacy policy:** [https://tmtmapp.com/privacy](https://tmtmapp.com/privacy) ## Description ■1. Study automatically!

What if you could automatically study one past question from the Industrial Hygiene Technician exam every time you turned on your phone?
How often do you turn on your phone each day?

You check KakaoTalk, Instagram, the time, and even just unconsciously flick your phone open. But if a question popped up every time you opened your phone, wouldn't you study a lot without even realizing it?

You need to study hard before an important exam. But even if you have a study app installed on your phone, it's a hassle to go back to the app and start over. It's often the case that you forget you're studying the moment you turn on your phone.

Just turn on your phone and you'll automatically see flash study cards and past questions for the Industrial Hygiene Technician exam. If solving the questions is too much of a hassle, just read through them once and don't worry about making mistakes. Even if you just read the clear explanations once and move on, it's incredibly helpful.

■2. Extensive past exam questions + the latest questions!
This app covers all past exam questions for all subjects,

and updates all upcoming exams without fail, so you can master past exam questions with just this one app.
This is the most comprehensive study app for the Industrial Hygiene Technician exam, unlike anything you've seen before, so trust us and get it!

■3. Everything's free
Yes! It's currently completely free.

■4. Unit-by-Unit Focused Study Function
From the first to the last...

Studying the old-fashioned way is very inefficient.

We provide functions that allow you to view questions by unit and question type,
so you can focus on your weak areas.

■5. Essential study features only experienced students know!

"What did I get wrong? I know this question, so why does it keep appearing..."
"I want to see only the confusing questions..."

Stop worrying about these things.

Create your own app with the error note and question deletion feature.

If you get a question wrong, it's automatically recorded in your error note.

There's even a feature that lets you skip a question you already know completely,
so you never see it again.

You can bookmark questions you want to review later,
and view only that part on your lock screen!

■6. Clear and concise explanations, filled with care
For those of you who study on your lock screen,
we provide the perfect explanations.

Our dedicated instructors

provide concise and clear explanations of correct and incorrect answers.

I think this will be much more helpful than lengthy, tedious explanations that are tiring to read.

■7. Various features that help test takers manage their mental and physical health
🎯 Goal reminder function to keep you on track
📅 D-day reminder to remind you of the precious time remaining
📜 Quotes to motivate you to work hard
🌧️ Weather function to help you manage your condition, etc.

💡 Special features of Tteumtteumbot
You can automatically view past exam questions on your lock screen, just like an alarm.
So, Tteumtteumbot will remind you to solve exam questions whenever you have time in your daily life!
Rely on Tteumtteumbot and solve past exam questions to easily pass your certification exam.💛

--------------------------------


We put a lot of effort into creating this app. If you recommend it to many people around you and more people use it, it will give us greater motivation to improve features and add content.
We would be very grateful if you could recommend it to them through KakaoTalk, Instagram, etc.
We would also greatly appreciate a +1 on Google Play.
We would also appreciate a positive review, as it will encourage us to do even better.

* This app is designed for studying on the lock screen.

Copyrightⓒ2022 Ttumttumbot All rights reserved.
* All copyrights in this app belong to Ttumttumbot. Copyright infringement may result in legal action.
* The sole purpose of this app is to study learning content on the lock screen.
The exclusive purpose of this app is that of a lockscreen. ## Rankings - #1,494,572 — Overall ## Permissions and access ### Permissions - `READ_PHONE_NUMBERS` - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_COARSE_LOCATION` - `android.permission.ACCESS_FINE_LOCATION` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.ACCESS_WIFI_STATE` - `android.permission.CAMERA` - `android.permission.CHANGE_WIFI_STATE` - `android.permission.DISABLE_KEYGUARD` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_SPECIAL_USE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_BASIC_PHONE_STATE` - `android.permission.READ_EXTERNAL_STORAGE` - `android.permission.READ_PHONE_STATE` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.REQUEST_COMPANION_START_FOREGROUND_SERVICES_FROM_BACKGROUND` - `android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS` - `android.permission.SYSTEM_ALERT_WINDOW` - `android.permission.USE_FULL_SCREEN_INTENT` - `android.permission.USE_FULL_SCREEN_INTENT.action.SHOW_ALARMS` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.amazon.privacypass.ATTEST` - `com.coupang.mobile` - `com.coupang.mobile.offsite` - `com.google.android.c2dm.permission.RECEIVE` - `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.huawei.permission.external_app_settings.USE_COMPONENT` - `com.tmtmapp.indengindhygiene.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [틈틈봇-산업안전산업기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indengsafety) — 47,590 users - [틈틈봇-산업위생관리기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.engindhygiene) — 3,221 users - [틈틈봇-산업안전기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.engindsafety) — 132,495 users - [틈틈봇-화재감식평가산업기사 (잠금화면 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.fireevaluationindeng) — 197 users - [틈틈봇-정보처리산업기사 (잠금화면에서 자동 공부)+알람](https://chrome-stats.com/d/com.tmtmapp.indenginfopro) — 1,419 users - [틈틈봇-자동차정비산업기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indengmainmotor) — 2,359 users - [틈틈봇-전기산업기사 (잠금화면 기출문제 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indengelecindueng) — 20,932 users - [틈틈봇-에너지관리산업기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indengenergy) — 1,995 users - [틈틈봇-가스산업기사 시험대비(잠금화면 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indenggas) — 1,563 users - [틈틈봇-전기공사기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.engelecwork) — 3,607 users - [틈틈봇-사무자동화산업기사 (잠금화면에서 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.indengofficeauto) — 2,671 users - [틈틈봇-건설안전기사 (잠금화면 기출문제 자동학습)+알람](https://chrome-stats.com/d/com.tmtmapp.engsconsafety) — 44,864 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.tmtmapp.indengindhygiene)