No, eSimfly does not provide a truly unlimited data eSIM for Mayotte. All of the plans listed for this destination have a hard data cap, with the largest bundle offering 35GB under the O2 Unlimited (International) label.
Travelers who need a large amount of high‑speed data can choose from several fixed‑data options. For example, the O2 Unlimited (International) plan gives 35GB for 30 days, while Vodafone Travel offers 25GB for the same period. Both plans include tethering. These bundles are cost‑effective for most users, and additional credit can be purchased separately if more data is required.