We will have users with read/write and read-only access. Do all have to be paid users ?

[Mahesh Khambadkone]

We plan to use Confluence to help document our systems.

The majority of users (150) will have R/O access, with the content being written and administered by a pool of 10.

Do all 160 users have to be paid users ?

We do not want to open the site to the public on the Internet.

[Brant Schroeder · Accepted solution]

@Mahesh Khambadkone You can provide read only access to users without a license in Confluence using anonymous access https://support.atlassian.com/confluence-cloud/docs/set-up-public-access/ This makes the content open to anyone on the internet.  This feature is available on the standard plan.    You can lock the public sites down on premium plan using IP allow list.   

[Alex Koxaras _Relational_]

Hi @Mahesh Khambadkone 

If you don't want this to be anonymous accessed, then yes you have to pay for the 160 users. There is the "guest" role which is currently in beta and which allows you for every paid user to grant access to only one space for 5 guests. So if you have 10 licensed users, then you get to have maximum 50 guests. However, as I told you this is still in beta and you should read this absolutely.