simpleSIM does not provide an unlimited data eSIM for El Salvador. All of its plans for the country have a hard data cap, such as the 20GB plan that is valid for 30 days and the 10GB plan that is also valid for 30 days. These are fixed data plans, meaning the data allowance must be used within the specified validity period.
Choosing a fixed data plan can be more cost‑effective for most travelers, unless the user is an extremely heavy data consumer who would benefit from a truly unlimited option.