simpleSIM does not provide a truly unlimited data eSIM for Montenegro. The plans that carry the “Unlimited” name actually grant 1 GB per day and reduce the speed to 512 kbps once that daily limit is reached, so the data is not unlimited.
Travelers who need more data can choose simpleSIM’s fixed data plans, such as the 20 GB + Calls & Texts plan valid for 30 days or the 10 GB plan also valid for 30 days. These plans offer larger data allowances without the daily cap and speed reduction, making them a more cost‑effective option for most users.