Re-stating the facts of the case for the comments: - This is a post-processing app. If you're familiar with Instagram, the mechanics are the same: you either u

Re-stating the facts of the case for the comments: - This is a post-processing app. If you're familiar with Instagram, the mechanics are the same: you either use the basic built-in camera, or select an existing photo. Then, you choose a filter, tune the filter, and after some processing, your result is ready. - The finished image can be saved on the device, or exported directly to Instagram or Facebook. - Recently, their camera gained a new button, to livestream to Facebook instead. The filters can be changed at any time during the broadcast. - Facebook has revoked their API access to this livestream feature. - Facebook is indeed working on style transfer for live video [1]. So this wasn't the case of a third-party app depending on a big platform's APIs and playing within their own walled garden. Rather, it's a related, but different case of betting on the tech instead of the community [2], effectively being a free tech demo and hoping to attract investor interest. While this may still work, the concept was quickly copied, -- in some cases, deliberately, like in the case of VK's Vinci [3]. In addition, the Prisma founder's previous employer, Mail.ru, released the similar app Artisto soon after, which worked on videos before Prisma did. [1] https://code.facebook.com/posts/196146247499076 https://code.facebook.com/posts/196146247499076 [2] http://www.businessinsider.com/prisma-labs-app-profile-interview-with-ceo-alexey-moiseenkov-2016-8 http://www.businessinsider.com/prisma-labs-app-profile-inter... [3] https://www.technohacker.com/vkontakte-launched-its-prisma-clone-vinci/ https://www.technohacker.com/vkontakte-launched-its-prisma-c...