Astaroam does not provide a truly unlimited data eSIM for French Guiana. The plans that carry the word “Unlimited” in their name actually offer 3GB of high‑speed data per day and, once that daily limit is reached, the speed is throttled to 1000 kbps. Because the data allowance is capped, these plans are not unlimited in the sense of providing unrestricted high‑speed data.
If a traveler needs a larger data allowance, Astaroam offers fixed data plans such as 10 GB for 30 days or 5 GB for 30 days, both of which include tethering and no speed reduction until the data is exhausted. These fixed plans can be more cost‑effective for most users, unless the traveler expects to consume data well beyond the daily limits of the “Unlimited” plans.