No, Simbye does not provide a genuine unlimited‑data eSIM for Switzerland. All plans list a specific data cap. The plans that carry “Unlimited” in their title give 2 GB/day at full speed and then keep data available at a throttled speed of 1 Mbps; this is not a true unlimited plan. Travelers who need more data can opt for fixed‑data plans such as the Switzerland 100 GB 30 days plan or the Switzerland 50 GB 180 days plan, which offer large high‑speed allowances without the speed reduction that occurs after the 2 GB/day limit.