Powerful Silent Timer – Vibration Alarm for Library, Train etc. at App Store analyse

App power index: 155 (based on ranks around App Stores today)
Utilities Productivity
Developer: Sho Kurozumi
Price: 0 free
Current version: 1.1.3, last update: 7 years ago
First release : 09 May 2014
App size: 2.54 Mb
4.0 ( 2400 ratings )
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Estimation application downloads and cost

> 3.41k
Monthly downloads
~ $ 1.4k
Estimation App Cost


[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 !!
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Available in countries
Country Price
Canada 0.99 CAD
China 8 CNY
France 0.99 EUR
Germany 0.99 EUR
Italy 0.99 EUR
Netherlands 0.99 EUR
Portugal 0.99 EUR
Spain 0.99 EUR
Poland 1.09 EUR
UK 0.99 GBP
India 99 INR
Japan 100 JPY
Korea, Republic Of 1100 KRW
Poland 4.99 PLN
Russia 99 RUB
Turkey 29.99 TRY
USA 0.99 USD
Korea, Republic Of 1.09 USD
Ukraine 0.99 USD
Available for devices
iPhone4, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,
Very useful

I use it at work all the time - I like to work in 25-minute blocks, then take a 5-min break, but I dont want to disturb my coworkers with lots of alarms. This app just vibrates quietly, which is perfect. Very useful app.

弱すぎる

iPhone 5で使用しましたが、私にとっては強力無音タイマーではなく無力微音タイマーです。がっかりアプリ。100円なので、興味のある方は一応お試しを

iPhoneでも

無音でd(>_< )Good!!

使える!

仕事の休憩の時みたいな音が出せない様な時に重宝します! タスクを閉じなけば他の作業中でも知らせてくれるしDLして良かったです(^○^)り

昼の休憩時間

昼寝の 目覚ましに 最適です^ ^人に 迷惑かかりません!確実に起きれます。

役に立たない

5S使ってるけど振動まったくこない 5Sつかってて振動くるひといるの?

電車内ではありがたく

音が鳴らない代わりに激しく振動するので、電車内では重宝しています。

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