First, I'm sorry because I know this question has been asked many times but I'm still looking forward to finding the answer to my problem.
I'd want to implement a Real-time chat for my Rails app but I can't really host the server which handles the sockets. I've tried Faye but it needs a server. I've also heard of pusher but it's limited to 20 users at a time on the chat and I can't really be sure they won't be more.
I've thought of irc but I think I can't really embed it into a rails app, maybe it needs sockets...
So here's my problem, can I implement a real-time chat without owning a server ? What can you advice me ?
Thank you for your answers.