AeriSIM offers several unlimited data eSIM options for Croatia. The plans are available with validity periods ranging from 1 day to 30 days. Prices start at $2.21 USD for the 1‑day Europe 32 Countries Unlimited eSIM that provides a maximum speed of 10000 kbps, and rise to $44.98 USD for the 30‑day Europe 32 Countries Unlimited eSIM that caps the speed at 5000 kbps. A dedicated Balkans 11 Countries Unlimited eSIM is also available, priced at $4.04 USD for a 1‑day validity and covering Croatia along with ten additional Balkan nations. All unlimited plans allow tethering, but speeds may be throttled after high‑usage periods in accordance with a Fair Usage Policy (FUP).
Because the FUP can reduce speeds after heavy usage, travelers who need to maintain consistent bandwidth should reach out to AeriSIM directly to confirm whether the plan’s maximum speed will be sustained or if a typical limit applies after a certain data threshold.