The device is indeed still supported! You can find a lot of the old App Store apps on our Gallery, now available for free: https://gallery.leapmotion.com/category/osx/
You can also see our App Store retirement announcement from June here: http://blog.leapmotion.com/app-store-sunset/
With hands in mobile VR just around the corner, we’ve been working hard to redefine our core user experience. We’ve also needed to make some clearcut decisions about how people access Leap Motion content.
We launched the Leap Motion App Store in 2013 because it represented a single destination for everyone who wanted to access the latest and greatest content. This made sense at the time because the Leap Motion Controller was a standalone product. Get a controller, download the software, find apps.
But with mobile VR, we’re set to become a fundamental component of a larger experience. OEMs who embed our technology have their own visions for app distribution. At the same time, online distribution platforms like Steam have a large (and growing) collection of VR apps. And in the last two years, the Leap Motion Gallery has expanded as a place to find desktop and VR content. For these reasons, an app store no longer makes sense.
With that in mind, we’ve decided to retire the App Store on June 30, 2017 – and to expand the Leap Motion Gallery as a central showcase for Leap Motion content. We will automatically issue App Store credit refunds to everyone who has used their Leap Motion wallet since January 1, 2017.
[...]
Will you still support the Leap Motion Controller?
Yes. We have no plans to end support for the Leap Motion Controller. The magic of our technology has always been in its software – and even after nearly four years, we’re still exploring the hidden depths of the hardware.