Yes, and there is no catch. When you pick the Single Basic plan, your first month is free. The discount is applied for you at checkout, so you pay nothing to begin.
You are not asked for any card or mobile money details to start that free month. That means there is nothing to cancel and no chance of being charged by surprise. You get the full Basic features for a month and decide for yourself whether to continue.
If you want to keep those features afterwards, you renew and pay for the next period. If you would rather not, your listing simply carries on as a free listing. Either way, your business stays on the site.