# Presentation Timer

> This is a simple timer application for your presentation.

Canonical page: [https://chrome-stats.com/d/org.tmurakam.presentationtimer](https://chrome-stats.com/d/org.tmurakam.presentationtimer)

## Overview

- **ID:** `org.tmurakam.presentationtimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Takuya Murakami
- **Category:** TOOLS
- **Downloads:** 196,781
- **Rating:** 1.29 / 5 (425 ratings)
- **Version:** 2.1.2
- **Last updated:** 2026-08-07
- **First published:** 2010-12-22
- **Publisher country:** JP
- **Size:** 1.46 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=org.tmurakam.presentationtimer)
- **Website:** [http://apps.tmurakam.org](http://apps.tmurakam.org/)
- **Privacy policy:** [http://apps.tmurakam.org/privacy\_policy.html](http://apps.tmurakam.org/privacy_policy.html)

## Description

Presentation Timer is a user-friendly Chrome extension designed to help you stay on track during your presentations. Featuring up to three configurable bell timings, the timer visually changes colors when bells ring, ensuring you are always aware of important time markers. It supports both count-up and count-down modes, allowing flexibility depending on your timing needs.

Additional features include manual bell ringing and rotation support, making it adaptable for various presentation setups. Whether you are a student, speaker, or professional, Presentation Timer is a reliable tool to maintain your presentation flow seamlessly.

## Rankings

- #160,826 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.VIBRATE`
- `org.tmurakam.presentationtimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users largely praise Presentation Timer for helping manage talk time with automatic bells and a clean, simple interface. However, multiple reviews note reliability issues (some say it doesnt work) and bugs around end-time controls (cannot uncheck or reset). A few mention configuration is not intuitive. Overall: strong time-management features with bells are the main strength; reliability and end-time/configuration bugs are the main recurring drawbacks.

### Pros

- Keeps presentation on track by managing time
- Automatic bell/ringer feature
- Easy to use with a clean, simple interface
- Exactly what I wanted for presentations
- Useful for speeches and presentations

### Cons

- Reliability issues: some users report it doesnt work
- Problems with end-time/ending bell checkbox (cannot uncheck or reset)
- Settings are not intuitive / hard to figure out how to change options

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Source: [Chrome-Stats](https://chrome-stats.com/d/org.tmurakam.presentationtimer)