cPanel & WHM license tiers are separated into Cloud Licenses (Available for VPS and Cloud Instances) and Metal Licenses (Available for Dedicated Servers).
The account tiers are separated into Solo, Admin, Pro, and Premier account tiers. The main difference between these tiers is the number of cPanel user accounts available to be created as well as the monthly pricing. The Solo, Admin, and Pro licenses require a Cloud License while both Cloud and Metal Licenses can be used with the Premier account tier.
Here's a summary of each account tier below:
Solo. 1 Account. $15.00 per month. Suited for small businesses, freelancers or anyone needing just one hosting account.
Admin. Up to 5 Accounts. $22.00 per month. Created for a small to mid-level agencies and businesses, application developers, and web designers only needing a few accounts.
Pro. Up to 30 Accounts. $32.25 per month. Optimal for mid-level businesses and large agencies that are growing. Allows for scalability.
Premier. Up to 100 Accounts. $48.50 per month. Each Account above 100 Accounts is $0.30 extra per month. Created for data centers, enterprise-level businesses, and larger web hosts.
These license tiers can be purchased on the cPanel Store.