A board-making app.
A video of the app in use, one minute into https://www.youtube.com/watch?v=YnhsbghuuJk.
A bunch of features available in the app, https://www.youtube.com/watch?v=f0ssLxmsuBQ.
Additional thoughts on the app, at the end of https://www.linkedin.com/pulse/herbiorg-explorations-assistive-technology-guy-barker/.