Is roaming free in Moldova with my EU or Romanian SIM card, or should I use SouthESIM?

Unfortunately, no. While Moldova is a candidate for EU membership and shares a border with Romania, it's not currently part of the EU's "Roam Like at Home" zone. This means your European or Romanian SIM card will likely incur expensive international roaming charges. To avoid unexpected costs and enjoy affordable, reliable data, a SouthESIM for Moldova is a much smarter and more budget-friendly option for exploring Chisinau and beyond.