Viasimo does not offer a plan with an unlimited data cap for Austria. The plans that carry “Unlimited” in their name provide 2 GB of high‑speed data each day during the validity period, after which the speed is throttled to a lower rate (1 Mbps for Austrian‑only plans and 384 Kbps or 1 Mbps for multi‑country plans).
For travelers who need more data without daily limits, Viasimo offers fixed‑data bundles such as the 50 GB plan valid for 180 days or the 100 GB plan also valid for 180 days. These plans give a larger data allowance and do not throttle speed until the data balance is depleted, making them a more cost‑effective option for heavy data users.