No. Emolysis is in private development and nothing is for sale yet: no plans, seats or credits. There is no waitlist or pre-order either.
The pricing page shows the plans and what each one includes, so you can see where Free ends and the paid plans begin. These are the planned launch prices, in US dollars and excluding applicable tax. They and the plan contents can change before release, and the news page says so when they do.
When paid plans open, the pricing page shows the current prices and what each plan includes, and the Free plan stays free with your own model key. To follow progress, read how you hear about releases.