# StudyTimer
> Timer, D-Day, Focus Mode, Completely Free. | Study timer, D-Day & focus mode — free, no ads.
Canonical page: [https://chrome-stats.com/d/com.woojun.studytimer](https://chrome-stats.com/d/com.woojun.studytimer)
## Overview
- **ID:** `com.woojun.studytimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** 용이원이
- **Category:** TOOLS
- **Downloads:** 205
- **Version:** 26.07.22.01
- **Last updated:** 2026-07-21
- **First published:** 2026-06-11
- **Publisher country:** KR
- **Size:** 5.00 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.woojun.studytimer)
- **Privacy policy:** [https://foil-server-f71.notion.site/StudyTimer-36c6a167bbf1806a823bed232c2b52d2?source=copy\_link](https://foil-server-f71.notion.site/StudyTimer-36c6a167bbf1806a823bed232c2b52d2?source=copy_link)
## Description
⏱ Real-Time Study Timer
The timer doesn't stop even when the screen is off or you're using other apps.
A persistent background service ensures your study time is recorded accurately.
You can check the timer status immediately from the notification bar.
📖 Subject-Based Time Tracking
Track study time separately for each subject — Math, English, Science, and more.
See at a glance where you spent the most time today.
🧠 Deep Work Focus Mode
Stay in the zone with Pomodoro-style focus/break cycles. You can also block notifications while studying by linking with Do Not Disturb mode.
Sync with Do Not Disturb to block distractions while you study.
📅 D-Day Countdown
Calculates the remaining days to your CSAT, exams, and important schedules in real time.
Count down to your exams, deadlines, and important dates in real time.
Sync with your calendar to automatically import events.
🏠 6 Home Screen Widgets
Access your study info without even opening the app.
- Live Study Timer Widget
- Subject List Widget
- Focus Wave Control Widget
- D-Day List Widget
- All-in-One Management Widget
- View All Dashboard Widget Full Dashboard Widget
⚡ Quick Settings Tile
Add a timer button to your notification shade quick settings.
Start or stop your timer instantly — no need to open the app.
────────────────────────
🔒 Your Data Stays on Your Device
All study records are stored locally with no internet required.
Nothing is sent to or collected by any server.
────────────────────────
Every core feature of this app is completely free.
No ads, subscriptions, or forced upgrades. No ads, no subscriptions, no forced upgrades.
There is an optional support feature for those who want to support the developer.
## Rankings
- #1,699,374 — Overall
## Permissions and access
### Permissions
- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_NOTIFICATION_POLICY`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK`
- `android.permission.INTERNET`
- `android.permission.MODIFY_AUDIO_SETTINGS`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_CALENDAR`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_CALENDAR`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.woojun.studytimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
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Source: [Chrome-Stats](https://chrome-stats.com/d/com.woojun.studytimer)