Choose a paying plan and you can try KPI Project for free for 30 days. You can cancel any paying account within 30 days of signing up and you won’t get charged at all. After 30 days, you’ll be charged for that month and start being billed monthly.  You can upgrade your plan in the 30 day free period anytime; you'll be charged according to the price of the plan your are on after the 30 day free period (unless you cancel of course).