Snap was designed with a different goal in mind. Compass and Communicator were both designed to address the needs of all needs on the AAC spectrum, whether you are an emergent communicator or a literate adult. When designing software to suit a large variety of needs, this creates a complex software system ‘Snap Core First’ is built specifically for symbol users: for those users who are not yet literate and are using symbols to communicate. Because ‘Snap Core First’ is designed for this specific area, we were able to create something that was a lot easier to use. Many people come in the AAC world using an iPad and as a result have a very specific requirement from their software: it needs to be very simple, easy to use and get started with. ‘Snap Core First’ is designed to meet those requirements. With ‘Snap Core First’ we did extensive user testing. ‘Snap Core First’ was not released until it had won in usability testing against our competitors. It was tested from the beginning and simplicity was a key element of this. We also wanted to ensure that users were able to make key changes across the system easily. It is built to be very forgiving; you are able to make changes very easily and try things out.