Watch the video below. If you can find the app that is repeated twice, tweet the name of that app to #SpotTheX before Midnight GMT on April 11th. By April 18th, Nokia will select three winners and tweet the names over Nokia's global Twitter account. Each winner receives a Nokia X and Nokia gear.
Nokia says that you must be 16 or older to enter the contest, which started on Friday. Finding the repeated app is not as easy as you think. Good Luck!
Thanks for the tip!
source: Nokia (1), (2)