Once you installed the app and allowed all permissions to access, you simply enter a meeting room name into the room field. You have now just created your first conference. Then once in the meeting, you can open the menu using the 3 dots button at the bottom, then select "Invite others" to share the meeting details with others.

You should reach out to the organizer of that conference and get the room name to join.

It sounds like a permission issue on the device. Can you please double check if you gave all the permissions to the app that it needs? The easiest way is to go to the device settings section of the phone, find the Meet Hour application, and turn all permissions on. On Android you may also need to go into "Apps and notifications" after opening Settings.

Once in the meeting, you can open the menu using the 3 dots button at the bottom, then select ?Invite others? to share the meeting details with others.

Meet Hour is mainly a web based app, so on any other desktop operating systems, you can just navigate to https://meethour.io using a Chrome / Safari / Edge browser and you're good to go. No need to download anything.

If you are prompted with a password when joining a conference, then you should reach out either to other participants in the conference, because they might have locked the conference, or to the IT administrator of your employer/school, because they must have set up a company/school-wide password for all conferences.

You don't need to delete a room, as Meet Hour meeting rooms get deleted as soon as everyone leaves them. If you want to remove it from your app home screen too, you can just swipe left on the name and it will offer you to delete the entry.