Zhang Hongfei

The quickest, easiest and handiest tip calculator ever! Calculate tip and split the bill among friends in just 5 seconds!The App does NOT STOP here! I …

This is a very handy utility that will help you manage holidays and birthdays!Don't remember every your family and friends’ birthday. No more worries! …

This is a simple and useful puzzle game, which will help you more smarter! Features: -1) Supports both iPhone and iPad -2) Supports English, Chinese, …