nextSIM does not provide a genuinely unlimited data eSIM for Austria. All of the plans that carry “Unlimited” in their name have a fixed data allowance—typically 1 GB per day or a set amount for the entire validity period—after which the speed is throttled to a reduced rate (for example 512 kbps or 2000 kbps).
If a traveler needs a large data allocation, nextSIM offers fixed‑data plans such as the eSIM Pro Austria 200 GB 30‑day package, which delivers 200 GB of high‑speed data with no usage cap, or the eSIM Unlimited Plus 10 Days Austria plan, which provides 2 GB per day at a higher speed before throttling. These options may be more cost‑effective for heavy data users compared to the “Unlimited” plans.