# Big Timer

> Timer with alarm, or Big Digital Clock on fullscreen display

Canonical page: [https://chrome-stats.com/d/jp.gr.java\_conf.jun0201.bigtimer](https://chrome-stats.com/d/jp.gr.java_conf.jun0201.bigtimer)

## Overview

- **ID:** `jp.gr.java_conf.jun0201.bigtimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** altoworks
- **Category:** TOOLS
- **Downloads:** 46,505
- **Rating:** 3.78 / 5 (174 ratings)
- **Version:** 1.6.2
- **Last updated:** 2026-08-31
- **First published:** 2020-10-22
- **Publisher country:** JP
- **Size:** 9.35 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=jp.gr.java_conf.jun0201.bigtimer)
- **Website:** [http://kazaguruma.sakura.ne.jp/](http://kazaguruma.sakura.ne.jp/)
- **Privacy policy:** [https://sites.google.com/view/altoworks/](https://sites.google.com/view/altoworks/)

## Description

**Big Timer** is a user-friendly Chrome extension designed for easy visibility with large digits. It functions both as a countdown/countup timer and a full-screen digital clock, making it ideal for events, music performances, presentations, sports, and study sessions.

Features include customizable screen orientations (automatic, portrait, landscape), multiple display modes (timer only, timer with clock, clock only), alarm sound notifications with adjustable volume, and visual alerts like screen blinking. The timer continues running even if you switch tabs or apps, with notifications showing in the notification area. Users can also prevent the screen from sleeping during use and customize colors for both the screen and digits. Additional alerts for remaining time (like 10 or 5 minutes) ensure you stay on track at all times.

## Rankings

- #308,079 — 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.FOREGROUND_SERVICE_SPECIAL_USE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `jp.gr.java_conf.jun0201.bigtimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users appreciate Big Timer for its large, clear time display and its helpfulness in maintaining focus, especially for students and during activities like yoga. The app is user-friendly and energy-efficient. However, several users report the lack of timer settings for hours and longer durations, absence of a focus mode and custom sound options, and limited default timer presets. Overall, it is considered a good app but could be improved by adding more flexible timing and customization features.

### Pros

- Large and clear display of time, showing minutes and seconds, which is especially helpful for students.
- Helps users, particularly students, focus and concentrate during study or work sessions.
- Easy to use and does not drain the phone's battery even when the screen is kept on for extended periods.
- Provides various timer variations and is helpful for different activities like yoga, meditation, and stock market trading.

### Cons

- Lacks the option to set timers for longer durations, such as hours or beyond 90 minutes, which is important for some users like students.
- No focus mode feature or custom sound functionality, which limits customization.
- Default timer presets (like 10 and 5 minutes) may not be sufficient for all users' needs.

## Similar extensions and apps

- [Big Screen Timer](https://chrome-stats.com/d/com.bigpro.screen.timer) — 10,627 users
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- [Minimal Clock: Timer Stopwatch](https://chrome-stats.com/d/com.minimalclock.timer) — 1,274 users
- [Big Clock Display Lock Screen](https://chrome-stats.com/d/upshot.bigclockdisplayonscreen.fullscreendigitalclock) — 3,328 users
- [Big Timer - Focus & Countdown](https://chrome-stats.com/d/com.hydroponicglass.big_timer) — 1,136 users
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- [Minimal Full Timer: Desk Clock](https://chrome-stats.com/d/com.hydroponicglass.minimal_full_timer) — 1,092 users
- [Big Timer - LED Countdown](https://chrome-stats.com/d/com.slgdeveloper.bigtimer) — 1,916 users
- [Full Screen Timer: Big & Clear](https://chrome-stats.com/d/com.mtius.simple_timer) — 854 users
- [Full-screen digital clock. Tim](https://chrome-stats.com/d/pro.devapp.clock) — 71,375 users, 3.36 / 5
- [Big Digital Clock Display](https://chrome-stats.com/d/com.lc.digital.bigclock.countdown.timerapp) — 22,321 users, 4.56 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/jp.gr.java_conf.jun0201.bigtimer)