CloudOn eSIM does not provide a truly unlimited high‑speed data eSIM for the United Kingdom. All CloudOn plans that carry the “unlimited” label give a fixed daily allowance—either 2 GB/day or 3 GB/day—after which internet speed drops to 1000 kbps. The data that can be consumed at full speed is therefore limited, and the plan expires after the listed validity period.
If you need a larger, fixed data allocation, CloudOn offers fixed‑data plans such as the United Kingdom_50GB_30DAYs plan for 50 GB over 30 days or the United Kingdom_20GB_30DAYs plan for 20 GB over 30 days. These plans give a set amount of high‑speed data without an expiration date and may be more cost‑effective for heavy‑data users compared to the capped “unlimited” options.