WattenEarthが全人類に捧ぐ！iPhoneおすすめ神アプリ

If you want to calculate your working hours and you started work at 9:08 and finished at 11:53, then type in 11:53 - 9:08. time:calc will tell you that you have worked 2 hours 45 m…

Conductor uses a bouncing ball to simulate the time-beating actions of a real conductor. This is great for watching out of the corner of your eye while you concentrate on playing. …