According to Pixates own FAQ related to this:

* Pixate Studio is now free to everyone

* Pixate Cloud is $5 per seat per month, or $50 per year

* Pixate Studio licenses will be refunded as a credit toward Pixate Cloud

Otherwise, no changes for now it seems. It's a very nice tool for simple prototyping for UX flows, animated transitions, and visual layout. A fantastic tool for designers.