You can add Kit to both new and existing websites. Kit is an add-on priced at £40/$69 per month, per website. When you're in the agency dashboard, a banner will appear offering the option to upgrade to Kit, with pricing details specific to you.
We also offer Kit packages, which you can view here - https://www.hikeseo.co/pricing by using the slider under “multi-sites.” If you'd like to switch to a package, feel free to reach out to our team via live chat!