The Leap Motion SDK Agreement allows you to distribute your Vuo compositions and exported apps, unless your apps meet Leap Motion's criteria for being a "Specialized Application":

“Specialized Application” means an Application which is: (i) sold, licensed, leased, or otherwise disposed of for a list price of more than US$500 or local equivalent, or more than US$240 per year or local equivalent if on a subscription, lease or similar basis; or (ii) sold, licensed, leased or otherwise disposed of as part of, or for use with, another application, system, machine or device (other than a personal computer), having a list price of more than US$500 or local equivalent, or more than US$240 per year or local equivalent if on a subscription, lease or similar basis; or (iii) designed for use, or that is primarily used, with or for control, whether direct or indirect, of industrial, commercial, military or medical equipment.

If your project meets those criteria, before you distribute your app, please contact Leap Motion to establish a distribution agreement.