GigSky offers only data‑only eSIM plans for Nicaragua, and none of those plans include a phone number or SMS capability. Travelers who need voice or text communication will have to rely on internet‑based services such as WhatsApp, Telegram, or iMessage. Those VoIP apps generally work over the data connection, but some destinations restrict or block specific services, so it is advisable to verify that the apps you rely on are accessible in Nicaragua before making a purchase.