For Group Chat on a Website
For Group Chat in a mobile app
For an API based messaging service:
For an abstracted real time data platform (focused on developers):
- www.firebase.com (from the team that brought you envolve.com)
For forums inside your iOS or Android app
- www.discourse.org (you will likely have to use their API)
For forums on your website
For a marketplace chat for your website
Hope this helps. As we come across more examples, we'll add them here. And of course, if you use any of these and have a particularly good (or bad) experience, please let us know!
Email any questions at email@example.com.