No, nextSIM does not provide a truly unlimited data eSIM for Ireland. The plans that include "Unlimited" in their names actually offer a fixed amount of high‑speed data—most commonly 1 GB per day or 2 GB per day—and after the limit is reached the connection speed drops to 512 kbps (or 2 000 kbps for the Plus variants).
For travellers who need a larger data allowance, nextSIM offers fixed‑data plans such as 50 GB for 30 days at $29.84 USD, 50 GB for 30 days at $30.52 USD, and a 100 GB plan for 30 days at $59.11 USD. These plans give a consistent high‑speed data experience without the speed reduction that comes with the “Unlimited” names.