shibaSIM does not provide any plan that offers truly unlimited high‑speed data for travel in France. All of the listed plans have a daily high‑speed data cap—such as 1GB/day, 2GB/day, or 0.5GB/day—which, after being reached, reduces the data speed to 128kbps. When no daily allotment is exceeded, the plan remains valid for the specified number of days (e.g., 30 days for the Europe (44 countries) Unlimited (1GB/day high speed) plan).
For travellers who need large amounts of data without daily limits, the provider offers fixed‑data plans that give a single bulk allowance. Examples include the France, Germany, Italy & UK 50GB plan valid for 30 days at $21.29 and the 30GB plan valid for 30 days at $14.49. These plans do not contain a daily cap and offer full‑speed data until the bulk amount is consumed. Choosing one of these fixed‑data options can be more cost‑effective for users who anticipate heavy data usage.