# Powerful Silent Timer – Vibration Alarm for Library, Train etc.

> Productivity

Canonical page: [https://chrome-stats.com/d/id873008064](https://chrome-stats.com/d/id873008064)

## Overview

- **ID:** `id873008064`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Sho Kurozumi
- **Category:** Productivity
- **Rating:** 3.70 / 5 (3 ratings)
- **Version:** 1.1.3
- **Last updated:** 2015-10-09
- **First published:** 2014-05-09
- **Size:** 2.71 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/powerful-silent-timer-vibration-alarm-for-library-train/id873008064)

## Description

[Attending school, commuting must-have app! ! ][For a limited time only] 
This is the best silence timer to prevent riding-past of bus and train. 

It will awaken you with powerful vibration when time has come. 

You can set an alarm on three stages. Silent, Normal, and Powerful. 

Silent ... At regular intervals. Longer interval. 
Normal ... At regular intervals. Shorter interval. 
Powerful ... MAXIMUM. 

To prevent accidentally timer cancel, it is equipped with a software lock function. 
Also during using the software lock function, you can check timer working. 
So you can feel safe. 

I recommend for people who want to take advantage of time commuting or during commute !!

## Rankings

- #601,795 — Overall

## Similar extensions and apps

- [Vibe Alarm - Silent Timer](https://chrome-stats.com/d/id6748874420)
- [Soundless Timer](https://chrome-stats.com/d/id6755815132)
- [Timer (Alarm Light Vibration)](https://chrome-stats.com/d/id6761318302)
- [Silent Flash Timer - No Sound](https://chrome-stats.com/d/id6449392949) — 4.40 / 5
- [Silent Alarm – Study Companion](https://chrome-stats.com/d/id6469013203) — 3.00 / 5
- [QuietAlert](https://chrome-stats.com/d/id1030822316) — 2.80 / 5
- [Quick Silent Timer](https://chrome-stats.com/d/id6746162746)
- [VIB Timer](https://chrome-stats.com/d/id583225867) — 3.00 / 5
- [Timer Vibration Text Speech](https://chrome-stats.com/d/id538658447) — 4.50 / 5
- [Viberation Alarm](https://chrome-stats.com/d/id949082325) — 4.10 / 5
- [Vibrating Alarm Clock & Timer](https://chrome-stats.com/d/id1659194791) — 4.40 / 5
- [Periodic Timer +](https://chrome-stats.com/d/id1175807581) — 3.90 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id873008064)