ZenSim offers 13 single‑country plans and 16 multi‑country plans for Montenegro. Those plans span a price range from about $4.50 to $107.10, give data caps between 1 GB and 40 GB, and remain valid for 5 to 90 days. The lineup includes both fixed‑data plans, which deliver a set amount of data over the subscription period, and daily‑cap plans, which limit the amount of data you can use each day, allowing more flexibility for short stays. Common features across many of the plans are tethering support, a new‑user discount, and an optional speed reduction that can apply if the network is heavily congested.