No, iRoamly does not provide an unlimited data eSIM for Montenegro. The available plans for this destination are fixed data bundles. Examples include a 90 GB plan valid for 365 days and a 60 GB plan also valid for 365 days, as well as 50 GB plans that last 3, 5, or 7 days. Travelers who need very large data allowances may prefer these fixed‑data options, which can be more cost‑effective unless they have extremely heavy data usage and would benefit from a different type of plan.