Indeed. That's that the only way I'd consider it. Luckily, they are generous with the free messages. Last I looked it was about $161 per day to scale to 100k concurrent users. But that's just SignalR. We'll also need much beefier AppServices with lots more memory than what we use now.

Not quite sure how it works beyond that when you need multiple service instances connected with a backplane. The new premium tier I just saw sounds convenient though.

https://azure.microsoft.com/en-us/pricing/details/signalr-se...

https://youtu.be/OsdBpMumf_c?t=635