Counter 08 · eSIM & Connectivity
Verified 06 Aug 2026
GigSky
GILong-running eSIM provider that also covers cruises and flights
GigSky has been in the global data business longer than most eSIM-only startups and covers 190-plus countries through 400-plus network partners. It stands out for also selling in-flight and cruise-ship data plans, not just land-based travel. A useful backup option if a trip includes time at sea or in the air with no other connectivity.
What GigSky is
GigSky is a US eSIM provider founded in 2010 in Palo Alto, selling prepaid mobile data plans in 190+ countries through its own network setup and partnerships with local carriers. It predates most of today's eSIM-only apps and still runs its own app and account system instead of white-labeling someone else's platform. Installation is standard: pick a plan in the app, and the eSIM activates on arrival with no physical SIM swap.
Where it actually stands out: cruises and flights
GigSky sells dedicated cruise ship eSIM plans (Cruise + Land or Cruise Only) covering hundreds of vessels, starting around $19 for a small bundle, plus in-flight data on select airlines. Airalo, Holafly, and Saily don't offer at-sea or in-air plans, so this is a gap GigSky fills. If you work from a boat, or want data the moment a flight lands instead of hunting for airport WiFi, this is the one provider on our list built for that. On land it also sells 1-day, one-week, and monthly plans, including a global monthly option for recurring use rather than single trips.
Where it falls short: price and support
GigSky is not the cheap option. Standard single-country plans (Thailand, Spain, Mexico) run about $5 to $10 for 1GB, consistently higher than Airalo or Saily for the same country and data amount. Support is email-only, no live chat, and replies land anywhere from a few hours to a couple of days during peak season. It's also data-only: no voice calls or SMS, so it can't replace your regular phone line.
Pricing and our take
Plans range from a few dollars for the smallest bundle up to the low hundreds for large multi-country or long-duration allowances, so the total depends entirely on how much data and how many countries you need. A free trial, small data allowance, no card required, lets you confirm the eSIM installs and gets signal on your device before you pay, which is worth doing given how much cheaper the land-only alternatives are. GigSky earns its place for cruise, flight, or global recurring coverage. If you mostly work from cities and coworking spaces on land, Airalo or Saily will cover the same countries for less.
What works
- One of the few major eSIM providers selling dedicated cruise ship data plans and in-flight connectivity, a gap Airalo, Holafly and Saily don't cover
- Runs its own network setup with direct local-carrier partnerships across 190+ countries rather than reselling a single aggregator's coverage
- Free trial with a small data allowance and no card required, so you can confirm the eSIM works on your device before paying
- A global monthly plan built for recurring long-term use, not just one-off vacation top-ups
What to watch
- Consistently more expensive than Airalo or Saily for standard land-based country plans, sometimes by a wide margin on the same data amount
- Support is email-only with no live chat, and reply times swing from a few hours to a couple of days
- Data-only: no voice calls or SMS through a phone number, so it can't replace your regular line
Questions at the counter
Is GigSky worth it for digital nomads?
It's worth it if you need connectivity somewhere land-based eSIMs don't reach, on a cruise ship or mid-flight, or want one provider covering 190+ countries without juggling multiple apps. For a nomad who mostly works from cities and coworking spaces on land, cheaper options like Airalo or Saily usually cover the same countries for less.
How much does a GigSky eSIM cost?
Plans start at a few dollars for a small bundle and scale up into the low hundreds for large multi-country or long-duration allowances. Single-country land plans for popular destinations like Thailand or Mexico typically run about $5 to $10 for 1GB, higher than several competitors.
Does GigSky work on cruise ships?
Yes. GigSky sells dedicated cruise eSIM plans starting from around $19, covering hundreds of vessels, with a Cruise + Land option that also works in port and a Cruise Only option for just the ship. It's currently one of the few major eSIM providers offering this.
GigSky vs Airalo, which is better?
Airalo is generally cheaper and better for short, budget land trips. GigSky costs more but adds cruise and in-flight coverage plus direct carrier partnerships across 190+ countries. Pick Airalo for simple city-to-city travel and GigSky when your trip includes time at sea or in the air.