Celebrate National Donut Day with these apps, games and iBooks!

National Donut Day has been around since the 1930s, and there's a serious reason behind it: It honors the men and women who served donuts to soldiers during World War I. National donut chains and mom and pop bakeries around the country are celebrating with free donuts today, but if you're on a diet or otherwise restricted, you can still get in on the fun.

Turns out there are a bunch of donut-related apps and games on the App Store. Most of these are free to download but sport some sort of in-app purchases. You might want to put some parental restrictions on your donut-crazed kids' iOS devices before letting them play these games. Not all of them are games, either. We've got utilities for donut chains and iBooks too!