MobiMatter does not provide any unlimited data eSIM plans for Gibraltar. Travelers who need a substantial data allowance can choose from MobiMatter’s fixed data plans, such as the 50 GB plan valid for 180 days, the 20 GB yearly plan, or the 10 GB plans valid for 30 or 180 days. While these plans offer large data bundles, they have a hard cap and must be used within the specified validity period. Choosing a fixed data plan can be more cost‑effective unless a user is a very heavy data consumer who might prefer a Pay‑as‑you‑go approach, though the Or topic says unlimited not.