Formsuite is completely free, you do not need to purchase any plan to use Formsuite long-term.

Your response limit and features are dictated by which plan you’re on. All paid plans come with an increased response limit and full control of all Formsuite features.

Please see https://www.formsuite.co/pricing for more details. You can also purchase/manage your workspace plans by going to the Billing section of your workspace. Only workspace admins can view and edit this page.