According to National Day Calendar, National App Day is observed annually on December 11.

Short for Software Application, apps quickly appeared as our mobile cellular phones incorporated smart technologies including processing chips, internet connectivity, and touchscreens. Since that time, apps have changed how we work, live and play. They have created thousands of new companies, millions of new jobs and billions of dollars in revenue.

To celebrate App Day online, post what your favorite app is on social media using #NationalAppDay, including why you couldn’t imagine life without it.

In honor of National App Day tomorrow, Fun 107 is giving away two free large pizzas from Domino's Pizza throughout the day.

There's only ONE way to win. Be sure to download the free Fun 107 app and turn on your "Contests" alert so you know when to call for your free pizza pies!

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