External Services
By far the easiest option regarding setup is the use of an online service that provides PlanarAlly to you and your players.
Official server
There is historically no fully official first party server. I do however host a public instance on https://app.planarally.io but that has historically been running the development branch. I’m considering changing this to the latest release and have an alternate beta version as well.
Known third party providers
If you host or know someone who hosts PA publicly, feel free to let me know!
These services are not operated by me and thus I cannot guarantee that the software has not been altered with malicious intent.
Dice.Quest (Previously dndbox.com) v2024.3 is hosted in Switzerland/Europe and hosts a number of open source projects including PlanarAlly. Support is offerred on reddit.
10leej.com v2025.1.1 hosted in Atlanta, Georgia/USA support provided by 10leej use contact information found on the website frontpage for support.