Sorry I didn't link to a Dynaboard email. Here's what an (unhappy) customer of theirs sent me: https://imgur.com/a/qTGpgbQ. They were unhappy because they're a) losing all their data, and b) losing all their applications.
mehal and I are former Dynaboard engineers, so we are well aware of the situation. No one is more upset about the removal of Dynaboard than the team, but it doesn't justify poor pricing practices from competitors