# Classroom Timer for Teachers

> Run timed lesson phases on a large classroom display made for teachers.

Canonical page: [https://chrome-stats.com/d/com.pentarab.classtimer](https://chrome-stats.com/d/com.pentarab.classtimer)

## Overview

- **ID:** `com.pentarab.classtimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** pentarab
- **Category:** EDUCATION
- **Downloads:** 8
- **Version:** 1.0.2
- **Last updated:** 2026-09-15
- **First published:** 2026-07-20
- **Publisher country:** KR
- **Size:** 23 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.pentarab.classtimer)
- **Website:** [https://www.pentarab.com](https://www.pentarab.com/)
- **Privacy policy:** [https://www.pentarab.com/privacy/android](https://www.pentarab.com/privacy/android)

## Description

A classroom timer designed for teachers, instructors, and workshop leaders. Build a clear lesson sequence and keep the whole room on track.<br><br>TEACHER TOOLS<br>• Set times for Work, Rotate, Review, and Cleanup phases<br>• Show the current phase and a large countdown for the room<br>• Preview the next phase<br>• Hear and feel an alert when the phase changes<br>• Pause, resume, or reset the sequence<br>• Save reusable class templates locally (Pro)<br><br>This is a teacher productivity tool, not a children&#39;s app. It works offline with no student accounts or data collection. Remove banner ads with an optional one-time in-app purchase.<br><br>Pro: no ads, unlimited use, all features unlocked. One-time purchase.

## Rankings

- #2,872,831 — 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.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.pentarab.classtimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.pentarab.classtimer)