Lists: Where your contacts are stored in your account. Each account (and subaccount) can have an unlimited number of contact lists, and you can add subscribers to lists through:
Subaccounts: Separate accounts that are under your primary Clearstream account. This is useful if you only want one plan/bill but have several ministries (youth, prayer, women's and men's groups) that would like to text their people regularly or multiple campuses that need their own accounts.
Each subaccount has its own lists, subscribers, keywords, inbox, users, long code, and integrations.
Each monthly plan comes with a set number of subaccounts. You can add subaccounts to any plan for $20/mo per subaccount.
Video Tutorial