No, your private channels are only known to you. Invited people can only see the channel they were added to by you.
Yes, there is no limit to the number of channels you can create.
No, there is only one public channel, created automatically. Users create private channels.
Yes, you have the option to turn off listening and transmitting on each channel.
Published versions of the AutoCB standalone application and the features included are free of charge.
At the moment AutoCB is only available for Android smartphones. Works on other versions are in progress, but we do not yet know the date of their possible release.
There is practically no limit to the number of people who can communicate on a private channel.