Here are some apps to help you celebrate April Fool’s Day

Today is April Fool’s Day (no, really, I’m not joking). There are a surprising number of apps on the Apple App Store revolving around this day of pranks. I won’t list all of ‘em here, but here’s a smattering to whet your appetite:

Funny April Fool’s Day Cards is a $0.99 app that serves up — you guessed it — silly quotes regarding the day. It’s available on the iPhone and iPad (and does tout in-app purchases).

If you need some ideas for pranks, there’s April Fool’s Day Prank Ideas ($0.99), Pranks (free), April Fool Pranks ($4.99), and PrankDial (free, but with in-app purchases). There’s also the free April Fool’s Clock that ticks backwards.

The free Riddle Jokes—Funny Questions & Answers is a free app of riddles and jokes about this silly day. And if you want to play a game, there’s the free April Fool’s Day: Pizza Maker.

Speaking of April Fool’s Day, some historians believe its customs of playing practical jokes and spreading hoaxes began in France, although no one knows for sure. It may stem from a calendar change in 16th century France -- the moving of New Year's Day from April 1 to January 1 when the Gregorian calendar was adopted. People who continued to celebrate New Year's Day on April 1 rather than the new date of Jan. 1 were referred to as "April fools" and others played tricks on them.