MeSIM does not provide a true unlimited data eSIM for the Balkans. All available plans for Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Montenegro, North Macedonia, and Serbia come with a fixed data allowance that must be used within a specified validity period. After the high‑speed data cap is reached, the speed is reduced, so the plans are not unlimited.
Travelers who need large amounts of high‑speed data can choose from MeSIM’s fixed data plans. For example, the 50GB/3‑day plan offers 50GB of high‑speed data usable over three days, and similar 50GB plans are available for 5 days, 7 days, 10 days, and 15 days. Another option is the 3GB/day plan that provides 3GB of high‑speed data each day for a set number of days, such as the 10‑day plan. These fixed plans give more data than the smaller daily‑cap options while remaining cost‑effective for most travelers.