The selling point of this platform is you can deploy unlimited apps (small/medium) with a fixed price use PocketBase as your backend as service, static sites or SPAs in frontend, complex logic with a standalone backend run on NodeJS/Deno/Bun.
This can happen because every Pro plan use it own compute (2 cores, 4 Gb ram, 40Gb disk) and you can deploy as much as the compute can handle. FYI, PocketBase is quite efficient.