Gohighlevel tiene un plan especifico para agencias de marketing y otras, que pueden administrar varios clientes , tienen pensado armar algun tipo de plan que pueda llevar mas de una cuenta cliente?
If I understand correctly, you looking to understand if we’re planning on having one subscription, rather than paying for sites individually?
If so, I’m not aware of any plans - you pay per site 
Yes, in the case of Gohighlevel, the initial plan is US$97 for up to 3 sub-accounts, then US$297 for unlimited sub-accounts. GHL charges a higher flat fee from the start ($97 USD/month). However, it replaces dozens of external tools (such as Mailchimp, Calendly, ClickFunnels, and ActiveCampaign), which in the long run can save money for companies that leverage its entire ecosystem.
Noted feedback 
Wix works on the “freemium” model, meaning you can build for free, until you need to upgrade a site. If this were to change in the future, it would be communicated in advance - although I’m not aware of anything like this in the plans