GigSky is one of the few travel eSIM providers that covers you beyond dry land: alongside 1,105 live plans across 193 countries, it sells dedicated cruise, ferry and inflight eSIMs that keep working once your ship is out at sea. Everything runs through the GigSky app, where new users get a free 100MB trial plan without entering a card, and plans only start counting down once your device connects to a network inside the coverage area.
GigSky is one of the few travel eSIM providers that covers you beyond dry land: alongside 1,105 live plans across 193 countries, it sells dedicated cruise, ferry and inflight eSIMs that keep working once your ship is out at sea. Everything runs through the GigSky app, where new users get a free 100MB trial plan without entering a card, and plans only start counting down once your device connects to a network inside the coverage area.
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Nomad eSIM GigSky works on any eSIM-capable, carrier-unlocked phone. Common examples:
Tip: open Settings and look for "Add eSIM" or "Add cellular plan" to confirm your device supports eSIM. Your phone must also be carrier-unlocked.
GigSky is app-first: you create a free account in the GigSky app (iOS or Android), which immediately unlocks a 100MB trial plan so you can test coverage before paying, then buy and install your travel plan from inside the app (QR-code installation is also supported). Validity does not start at purchase — the clock starts when your device first connects to a network in a location the plan covers, so you can buy at home before a trip. One caveat: if you buy a plan that also covers your current location (common with Cruise+Land plans), it activates as soon as the eSIM installs, so GigSky itself recommends installing shortly before departure or keeping mobile data off for that eSIM until you need it. Cruise plans begin working once the ship is about 12 nautical miles offshore, typically about an hour after leaving port. Top-ups and auto-renewal are handled in the app.
No traveler reviews for GigSky yet — we only publish real, moderated experiences, never invented ones. Used GigSky on a trip? Yours can be the first.
On esimadvice.com we track 1,105 live GigSky plans covering 193 countries. The catalog includes hundreds of unlimited-data plans, mostly for single destinations and shorter trips, but no pay-as-you-go plans without an expiry date.
Yes. The code ESIMADVICE15 gives 15% off GigSky plans, and the prices you see on esimadvice.com already include it. Enter it at checkout if it isn't already in the code field, and check the discount before you pay.
Neither at purchase nor strictly at first use: the validity clock starts when your device first connects to a network in a location the plan covers. That means you can safely buy before a trip, but if the plan also covers where you are now (as Cruise+Land plans often do), it activates as soon as the eSIM is installed, so GigSky recommends installing just before departure or keeping the eSIM's mobile data off until you need it.
Yes — cruise coverage is GigSky's signature feature. Its cruise, ferry and offshore eSIMs use the ship's onboard Cellular at Sea network, with service beginning once you are about 12 nautical miles offshore, typically about an hour after the ship leaves port; Cruise+Land variants also cover the ports you visit. Ordinary land eSIMs go quiet at sea, so this is a genuinely distinct product.
Yes. Creating a free account in the GigSky app unlocks a 100MB trial data plan with no card required, so you can verify coverage on your route first. Eligible Visa cardholders can also claim complimentary data allowances and automatic discounts by verifying their card in the app.
