How do I switch to annual billing?
From the Billing tab in your dashboard. It opens your own secure billing portal, and the switch to annual is right there, a couple of clicks, no email needed.
Annual is simply cheaper than paying month to month for the same plan, that is the whole pitch. If you already know the account is a keeper, annual is the obvious move.
The switch takes effect through the billing portal, which shows you exactly what you will pay and when before you confirm anything. Nothing is charged silently.
One honest note on when it makes sense: growth compounds, so the clients who get the most from annual are the ones past their first month who can already see the trajectory in their dashboard. If you are brand new, run a month or two first, then switch, the option does not expire. Your plan itself stays changeable, upgrades and downgrades work the same on annual.