It's also self-hosted, which is great. You're not beholden to yet another cloud service. The other players of your group just connect to your server with their web browsers, so no extra licensing required for them.
If you don't want to, or can't self-host, there is The Forge, which offers a hosted Foundry service, but I don't know what the costs are as I've never used it.
Bravo ๐