JSDN

我都是聽球和球線互擊的聲音來判斷要不要換線，沒想到竟然出這種 App 了…
Finally – after almost one year of hard work: the stringster app is available on Google Play and in the App Store. Thanks to everybody who supported us in the last 12 month! Download stringster for FREE, test it and spread the news! You may manage your first racket for free – no matter how many times you restring it. We hope using this mobile app will help you to play badminton even more effectively. And if you have any ideas how to improve stringster, we are happy to hear from you via our website! www.stringster.net DOWNLOAD HERE Android GooglePlay http://ift.tt/2pRpaF6 iOS App Store http://ift.tt/2qR2Edb
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