Number of active users

Is there anywhere in Meteor to find out the numbers of users currently using a deployed app - and who they are i.e. list of currentUsers

like https://github.com/mizzao/meteor-user-status

agree or try https://atmospherejs.com/meteorhacks/kadira

Only for single instance

Thanks - both meteor-user-status and kadira look very interesting - I will give both a try!

you can also see this if you need realtime stats:
https://atmospherejs.com/wsnepal/app-info
demo:
http://wsappinfo.meteor.com/