價格：免費
檔案大小：12.1 MB
版本需求：需要 iOS 6.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Most popular nails on chalkboard app on the app store. Prank your friends with the universally repulsive sound of nails scratching a chalkboard. Download today!
NEW TONES: Have trouble waking up? You can now set your alarm, alert, or ringtone any of the in-app sounds you hear.
To make the sound, simply drag your finger down the chalkboard. Turn up the volume to maximum for extra effect!
To save the tones, click the musical note to send them to yourself via email. Then just drag them to the tones section of itunes, sync them to your phone, and enjoy!
Psychologically torment those around you with this fun and simple gadget.
Designed by Zach Nagengast and Alec Shaffer.
支援平台：iPhone, iPad