eSIM On on a cruise — the honest answer
Short answer
eSIM-On is a prepaid travel eSIM brand run by SIHEL PTE LTD. You buy through its own iOS and Android apps, or through esim-on.com. The catalogue covers 180 countries on 4G and 5G networks. You install it by scanning a QR code, no need to swap a physical SIM. The company's own listing says it activates in about two minutes. On a cruise, it only works on land, inside a country on that list.
Prices last confirmed
Overview
eSIM-On sells prepaid data-only eSIM profiles. It doesn't run its own network. Instead, it distributes plans through its own apps. They're published under the developer name SIHEL PTE LTD. You'll also find the catalogue on esim-on.com. The catalogue spans 180 countries on 4G and 5G networks. Each profile arrives as a QR code. You can install it before you travel, or once you land.
Setting up a plan happens inside the app. You pick a bundle, pay by card through Stripe, and the profile is ready to scan. eSIM-On tracks your usage in the app too, not through a carrier account. On Trustpilot, esim-on.com holds 306 reviews at an average of 4.8 out of 5. Reviewers praise the WhatsApp support again and again. It's the reason most people give for the high score. One detailed complaint describes an eSIM that failed to activate at an airport.
Coverage on a cruise
eSIM-On runs on ordinary shore-based 4G and 5G networks. It's the same signal your phone picks up landing in any of its 180 countries. There's no maritime or satellite layer built into any plan. A profile bought for a cruise connects once the ship is docked. Your phone finds a local tower and picks up the signal. It drops out again as soon as the ship pulls away from land. A standard eSIM like this has no signal roughly 12 nautical miles out at sea. On a multi-port cruise, you need a separate country bundle for each stop. Switch on a fresh bundle at every port. Don't leave one running for the whole voyage.
Plans and pricing
eSIM-On prices its catalogue by destination, not as one global tier. Each of the 180 countries has its own set of data-and-validity bundles. You choose and pay for these inside the app. The company describes the model as fully prepaid. There's no subscription, no activation fee and no hidden roaming charge once you buy a bundle. That's according to the app's own listing, checked September 2026.
Prices are set per destination and shift with promotions. So the App Store and Google Play listings don't publish a fixed rate card. The storefront doesn't list every country's validity periods in one place either. To price a specific port, open that country's page inside the app. You won't find one headline figure to check instead. That's normal for a destination-priced eSIM catalogue this size.
Features
| Coverage | 180 countries on 4G and 5G networks |
|---|---|
| Hotspot / tethering | Not stated in the public app-store listing |
| Data / calls / SMS | Data only; calls and SMS are not part of the listed feature set |
| Activation | QR code scan; listed as live within about two minutes |
| App | eSIM-On for iOS and Android, developer SIHEL PTE LTD |
| Payment | Card checkout via Stripe inside the app |
| Support | WhatsApp-based live chat, praised across Trustpilot reviews |
| Refunds | Not published in the app-store listings |
| Device compatibility | eSIM-capable iOS and Android handsets |
| Ratings | 4.8 out of 5 on Trustpilot from 306 reviews |
Setup and activation
Buying an eSIM-On bundle happens entirely inside the app. Pick a country and pay by card through Stripe. Your QR code is ready to scan right away. The company's own listing says it activates within about two minutes of installing the profile. Before a cruise, install and scan the profile while you're still on home or hotel wi-fi. You need a data connection to set it up. It's best not to leave that until you board. Once it's installed, leave it switched off until the ship reaches its first port.
Strengths and limits
- Its catalogue covers 180 countries on 4G and 5G networks.
- It's fully prepaid, with no subscription, activation fee or hidden roaming charge.
- WhatsApp support draws repeated praise across 306 Trustpilot reviews.
- You buy and activate everything inside one app.
- There's no published rate card, so per-country prices sit only inside the app.
- The app-store listings don't state a refund policy.
- Hotspot or tethering support isn't mentioned in the public listing.
- One Trustpilot reviewer says their eSIM failed to activate at an airport and was never fixed.
Cruise and ferry plans
The plans database on this site holds cruise, ferry and maritime products only. eSIM On publishes none, so there is no plan table on this page. Its regional data plans remain the relevant purchase for port days.
Verdict
eSIM-On suits a cruise passenger who wants one app for every port on the itinerary. You won't need calls or texts alongside data, so that's not a problem here. The 4.8-star Trustpilot score is built on WhatsApp support. That suggests problems get sorted out fast when they come up. There are gaps, though. eSIM-On doesn't publish a refund policy or a rate card. That leaves pricing and worst-case outcomes less clear before you buy. And it only works on land. You'll still need a maritime eSIM or ship wi-fi for your days at sea.
What to pair this with for sea days
For the hours between ports you need one of the three maritime providers:
Frequently asked questions
01Does eSIM On work on a cruise ship?+
No, not once you are out of sight of land. eSIM On has no maritime product at all, which means its coverage tracks the coastline: excellent in port, absent on a sea day. Treat it as a shore excursion plan.
02What company operates eSIM-On?+
SIHEL PTE LTD runs eSIM-On. It's the entity listed on the app's Apple App Store page. The public listings don't say when the company was founded, or where it's based. Those details simply aren't published alongside the app.
03Does eSIM-On charge extra fees beyond the price of a bundle?+
No, according to the app's own description. It says the service has no subscription, no activation fee and no hidden roaming charge. That applies once you buy a country bundle. The listed price of each bundle is the full price, checked September 2026.
04How is data usage tracked on an eSIM-On plan?+
Your usage is tracked inside the eSIM-On app. It's not a carrier text alert or a separate web dashboard. Push notifications are built in too, flagging your account and balance updates. Monitoring stays tied to the same app you used to buy the bundle.
05What do eSIM-On's Trustpilot reviews say about support?+
Across 306 reviews averaging 4.8 out of 5, WhatsApp support is the most repeated praise. Several named staff get credit for fast replies. One review in the same set describes an eSIM that failed to activate at an airport. That customer felt the company never took responsibility.
Compare eSIM On with
- Saily — Nord Security's travel eSIM brand, which added a dedicated Cruise tab in June 2026 covering 28 cruise and ferry operators (only one of which, P&O Ferries, is a ferry line). Its at-sea pricing is the keenest per gigabyte we track, but the plans activate only beyond 12 nautical miles — they do nothing in port, so pair one with a regular regional eSIM.
- Maya.net — Maya sells a "Global + Cruise" unlimited plan in 3, 7, 14 and 30-day windows that bundles worldwide land coverage with at-sea data on Carnival, Celebrity, Disney, NCL, Princess, Royal Caribbean and Virgin Voyages ships. It is the simplest option for anyone who refuses to think about data allowances.
- OneRoam — Unlimited data on one eSIM that covers both the ship at sea and 140+ countries on land, across 200+ vessels. Priced by duration rather than gigabytes, and the only provider we list that quotes in GBP, EUR and CAD as well as dollars.
- eSIM.dog — Sells both a huge land catalog at keen per-GB rates and — unusually — a genuine Telenor Maritime satellite plan that works at sea on 150+ named ships and ferries. The cheapest way onto a ship network at $14.49 for 100MB, and the most expensive per gigabyte beyond that.