Integration with a personalized calendar or agenda app

Does anyone know of a third-party service that can be embedded into a Webflow site and allows you to create an event agenda and let people check off the sessions that they would like to attend so that they appear in a personalized agenda?

I’ve been looking at event apps and really the only feature they offer that we need is this ability. Obviously this would mean users would have to log in. I thought about Memberstack but I don’t think it is designed for this.

Here’s an example from Socio. Building a static agenda like this is easy in Webflow but letting people select their own agenda is not. I don’t care about the attendee numbers, streaming or any of the other things shown.