shibaSIM does not offer a true unlimited data eSIM for Croatia. All plans that include “Unlimited” in their name have a fixed daily or total data cap, after which the speed is throttled to 128 kbps. Because there is no plan with a data cap marked as “unlimited, ” travelers looking for higher data volumes must choose from one of shibaSIM’s fixed data plans.
For large data allowances, two common options are the 30GB plan for 30 days at $18.09 USD and the 20GB plan for 30 days at $13.09 USD. Both are fixed data plans that provide high‑speed data up to the stated cap, after which the speed is reduced to 128 kbps, and they are valid only for the specified duration.