The winner with the closest team selection can win an iPad
Digital sports agency Muddy Rhino's My Lions Rugby, which is available from Apple's App Store, is sure to add some fun and spark debate.
The app allows you to predict the British and Irish Lions squad for their tour of Australia in July 2013.
Now fans and players alike can join in the fun of the biggest team selection debate in rugby!
The database has more than 750 players qualified to represent England, Ireland, Scotland and Wales to choose from.
In addition to predicting the match-day squad, you can choose your captain and the first Lions try scorer of the test match. You
can share your predictions with friends via Facebook or Twitter, and there's even a chance to win an iPad for the competition entry with the closest prediction.
The My Lions Rugby app is available now at just £0.69 from the Apple App Store.