Great question. 8base's developer experience is different than Hasura's, including that we provision infrastructure so that devs aren't required to have AWS/Heroku/other skills nor pay for that separately. Ease of use is a big thing. There's significant differences in the GraphQL engine itself, role-based-security, integrations of external systems and more. Our roadmaps will diverge dramatically in the next 12 months as 8base rolls out more and more application infrastructure services.
Another way to put it is that Hasura is mostly about enabling GraphQL on Postgres; 8base is the backend for powerful, enterprise-grade (when necessary) software. GraphQL is an essential design detail for us but not the business or product itself.
Regarding your comment about freemium; I've seen many backend products falter, pivot, and shut down from having unsustainable business models. We are offering a robust plan for $8 / month to start. If developers agree with us that their DX is better, then $8 shouldn't be an issue as their time is more costly. But we appreciate what you are saying and are watching this closely.