Can I expect free roaming in Gibraltar with my European (EU) or Spanish SIM card, or is Truly Roaming necessary?

This is a significant roaming trap. Despite its European location, Gibraltar is not a member of the European Union. Therefore, your EU "Roam Like at Home" plan, even from neighboring Spain, will not apply. The moment you cross the border, your home carrier will likely impose expensive international roaming charges. Truly Roaming offers a straightforward, budget-friendly solution for Gibraltar, ensuring you have continuous, predictable data for navigation or quick work tasks without unexpected costs.