mysim24 does not provide a truly unlimited data eSIM for El Salvador. Every plan listed as “Unlimited” in the provider’s catalog actually gives a daily allowance of either 1 GB or 2 GB at full speed; once that daily amount is used, the connection continues at a reduced speed of up to 512 kbps or 2 Mbps and the high‑speed period resets after 24 hours. Because the data limit is tied to daily usage rather than an overall unbounded quota, these plans are not unlimited in the sense of high‑speed data without a ceiling.
Travelers who need larger volumes of high‑speed data can choose fixed data bundles instead. For example, mysim24 offers a 50 GB plan for 30 days in El Salvador at $97.31 USD and a 100 GB plan for 30 days at $309.31 USD, as well as a 100 GB plan for 180 days at $176.19 USD. These fixed data plans give a clear, high‑speed data allowance for a specified validity period and may be more cost‑effective for heavy data users compared to the daily‑reset “Unlimited” labels.