Roamingo does not have a true unlimited data plan for the Czech Republic. The only plan that carries the word “Unlimited” in its name, “Europe Unlimited for 1 day,” actually offers a 2GB data cap and is valid for 1 day; after the limit is reached, the speed is throttled to 2G in the dataset.
For travelers who need more data, Roamingo provides several fixed‑data options that cover the Czech Republic, such as 20GB for 30 days at $25.50 USD, 10GB for 30 days at $14.50 USD, and 5GB for 30 days at $10.50 USD. These plans give a set amount of high‑speed 4G/5G data, after which usage slows to 2G if the allowance is exceeded. Choosing one of these fixed plans can be more cost‑effective unless you expect to consume an extremely high amount of data.