GIGAGO offers only data‑only eSIM plans for Mayotte; it does not provide plans that include a local phone number or the ability to send or receive SMS. Travelers can therefore use the data connection for internet access but will need alternative methods, such as VoIP applications, for voice calls and text messaging.
VoIP apps like WhatsApp, Telegram, and iMessage generally work over the data connection, although some destinations may restrict or block certain services. It is advisable to check that the apps you rely on are accessible in Mayotte before purchasing a GIGAGO eSIM.