Powerful Silent Timer – Vibration Alarm for Library, Train etc‪.‬ 4+

Sho Kurozumi

Designed for iPhone

    • 3.7 • 3 Ratings
    • $0.99

iPhone Screenshots


[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 !!

What’s New

Version 1.1.3

This app has been updated by Apple to display the Apple Watch app icon.

Small Bug fix for iOS 9

Ratings and Reviews

3.7 out of 5
3 Ratings

3 Ratings

Bcdfghjklmnpqrstvwxz ,

Needs an auto restart mode to be perfect

This would be great for presentations if it had an auto restart -- when countdown hits zero, vibrate 2 times then restart the counter. Useful for other activities, like gym, where you want to move from task to task. Would also be nice if it could set time in seconds. Add those 2 features and I'd give it 5 stars.

Deadite Convert ,

Doesn’t work with screen locked

This app dies exactly what it says but there is one glaring flaw. If you lock your phone the timer can’t execute the vibrations and you get nothing. This is functionality I would expect from free or ad funded software but I was expecting more from a paid app even if it’s only a buck. Disappointed

Indigosophia ,


Really lousy. No alarm when iPhone screen is off. Cannot set up more than one alarm time. I regret deeply to make this purchase. Don't waste your money like me. What a disappointment!

App Privacy

The developer, Sho Kurozumi, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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