We don't have upper bound limits for users and rooms:
- users: we can handle as many users as you are willing to pay for ![](/legacyfs/online/emoticons/happy.png)
Well, not exactly, but almost. The two "bottlenecks" limiting the number of users are metered total user connection time and the traffic/client cpu load generated by maintaining the "roster" (this second factor can be reduced enabling anonymous presence, a new feature that we introduced with the last SDK)
- rooms: we don't limit the number of rooms you can create. When you create a room we just allocate a few static data structures (file-like database rows) so the physical limit would be our data repository size. Note that if you create thousands of rooms you'll have a very hard time trying to manage them via DevPortal and/or service API (all rooms for the account are kept in a single "folder" so listing that folder will be a very slow operation) but you can keep the list in your database.