yaySIM does not provide an unlimited data eSIM for South Sudan. The available plans are fixed data bundles, such as the 20GB plan valid for 30 days, the 10GB plan valid for 30 days, and the 5GB plan valid for 30 days. These fixed data plans give a set amount of high‑speed data that 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 pay‑as‑you‑go model.