Brand voice is the purposeful, consistent expression of a brand through words and prose styles that engage and motivate. It’s true: The personality of your brand is determined, in large measure, by the words you use and the sentences you write. So let’s get started creating an authentic voice for your brand. Colors palettes are part of the brand voice because it can convey the users and clients.
Here a good example of how to use brand voice and UX.
http://blog.invisionapp.com/brand-voice-and-ux-a-starter-guide/
Proto.io
Proto.io has expanded to allow users to prototype apps for anything with a screen interface, Proto.io utilizes a drag and drop user interface (UI) and does not require coding. Also, you can sync Sketch App with Proto.io, every artboard can be imported as an individual screen, preserve layers and group and updated assets so the interaction and animations. More sources you can find in the “RESOURCES TAP”.
