Of course there is this app is just a fun app, becuase it is technically not possible to ultrasound with a smartphone. But this did''t know your friends, so you can trick them with this free app. Please note it, before you rate the Pregnancy Ultrasound negative.
How to use: Lie down your pregnant girlfriend and start the ultrasound scanner app. Now just move the mobile left, right, forward and backward to make the ilusion perfect.