The ArmyApp is an app I built with my college friends when I was a second lieutenant chief counselor in the Republic of China Armed Forces. It helps soldiers to report their locations during their vacation, taking only 3 seconds. It caused an army-wide sensation and became news in Taiwan. Thus, the Chief of the Republic of China Army gave me a prize. The Army Command Headquarters also gave me a chance to lead a short term project to digitize some information for the army.