[fidor]

In general the discovery is mostly for the people looking for a club, rather than the club themselves. I believe there's also huge space for creating new clubs. (e.g. 10 people in a town search for a Netball team but it doesn't exist. Perfect chance to self organise). From the research I've done, tennis tends to be an outlier because the physical clubs tend to be quite large, well known, and have something for everyone. As opposed to football or netball where you just play in a park in an evening and you have no idea of the ability level until you show up.

I completely agree communications is going to be tough. I really don't want to build yet another chat app. There just aren't any drop in solutions though. Especially not with group messaging. The question has to be what your messaging for. If it's just notification messages, that can be solved with e-mail/sms/whatsapp.

Anyway, thanks for your feedback!