On a recent trip to Europe, I had a chance to try out GigSky's new pay-as-you-go cellular data plan that's available through via eSIM on the iPhone XR, XS, and XS Max.

I used GigSky's service across four countries, testing out the ease of use, the coverage, the setup process, and what it's like to use the eSIM to get cellular connectivity in another country.

Setup

Setting up the GigSky service was simple, and much more convenient than having to source a physical SIM to go along with a cellular service that uses a standard SIM. I downloaded the GigSky app, opened it up and selected the country I was visiting.

GigSky recommended that I purchase a plan once I arrived in my destination country (Czech Republic), which I did, and after the purchase was made and the payment confirmed, I was set up and ready to go.

gigskysetupoptions
The app downloaded the eSIM on my phone, and I was able to select it as a secondary cellular option using the Cellular section of the Settings app on the iPhone.

Service Requirements

Using GigSky's eSIM service requires an iPhone that is both unlocked and that supports eSIM, so the iPhone XS, XS Max, and XR. My carrier is Verizon and I purchased my iPhone outright, so it came unlocked by default and there was nothing else I needed to do. The GigSky eSIM just worked.

gigskyesim
Potential customers on other carriers may need to make sure their iPhone has been unlocked before the GigSky service will work. It is not available on a device that is locked.

eSIM Usage

I activated the GigSky eSIM after arriving in the Czech Republic, and from there, I didn't need to do anything when traveling between country borders. The data plan was active no matter which European country I was in, and I didn't see anything more than a momentary lapse in service crossing borders.

When first using the eSIM, I did run into a bit of trouble. GigSky's eSIM is data only, which means there's no phone number associated with it, and I didn't think there was enough instruction on how this worked.

gigskysetupoptions
I initially wanted to disable my Verizon SIM to make sure I didn't actually use any Verizon data or place Verizon calls/texts, but that got me into quite a bit of trouble in practice. After turning off my Verizon number on the first day in the Czech Republic, I got separated from the people I was with.

As it turns out, disabling the primary number with no secondary number turns iMessage and FaceTime off, and I couldn't get any texts, messages, or calls to go through so I was thoroughly disconnected. There are probably similar issues when changing your main iMessage number, so when using a secondary SIM, whether it's data only or a different phone number, make sure to leave the primary enabled so iMessage continues to work.

gigskysecondarydataplan
After that little setup snafu, I re-enabled my Verizon number, set GigSky as the primary data source, and left Verizon as the secondary data source.

I'm not entirely sure how it works with other carriers, but with Verizon, TravelPass service isn't activated unless I place a phone call or send an SMS message. Because I couldn't turn it off entirely, there was one time where I pocket dialed someone and got myself a $10 daily data charge, but that was my fault.

For the majority of the trip, once I had the settings properly established, the GigSky data worked without a hitch and I didn't need to activate my Verizon travel plan.

Coverage

I tested GigSky's service across four countries in Europe: Germany, Austria, Czech Republic, and Hungary. In most of these locations, except when I was in more rural places, I had reliable, fast LTE service that led me use social networks, check mail, and watch videos with no problems.

In Hungary, specifically in Budapest, my service switched between 3G and LTE, but I was never left without any connection at all with the exception of remote areas. In the major cities, and even smaller cities, my cellular connection worked well.

gigskysignal
GigSky's service also worked in the Bay Area of California and Washington DC, two other areas where I was able to test its reliability.

Connection is, of course, going to vary by country and this isn't a reliable metric for service in other areas, but based on this sample, in urban areas, GigSky's service is decent and comparable to LTE from a standard carrier.

Costs

In Europe, and several other countries including the United States, GigSky's service is priced starting at $10 and is available in several high speed (LTE where available) data allotments that last for varying amounts of time, so you can purchase just the data that you might need.

300MB of data is available for $10, and that data pot lasts for just a day.

You can get 500MB of data for $15, 1GB of data for $20, and 2GB of data for $30, with all of these data pots available for 15 days.

gigskydataoptions
GigSky's most expensive plan is its 5GB data plan, which costs $50 and lasts for 30 days. I picked this latter option, and I used just about 5GB of data over the course of my trip. I wasn't doing anything particularly data heavy, but I was browsing the internet, checking social media, uploading images to social media, and checking and responding to emails.

Price wise, I think GigSky's options are fairly expensive, but my own carrier wasn't offering anything better. I have Verizon coverage in the United States, and Verizon's travel plan is $10 per day for 0.5GB of data and unlimited 2G data after that, which is little high speed data for a high price tag.

Some carriers have better deals, but most limit LTE access or charge quite a bit for data. T-Mobile has free unlimited 2G speeds when traveling or charges $5 per day for 0.5GB of high speed data, Sprint offers free 2G data when traveling or offers high speed data passes for $5 day ($25 per week), and AT&T charges $10 per day with LTE speeds limited to your normal data plan allotment.

gigskydatausage
It would have cost me upwards of $100 to have limited high speed data available on Verizon during my trip, so GigSky was definitely the better option. Getting SIM cards in each country or signing up for a European data plan probably would have been the most price efficient, but GigSky was the simpler option that was still better than what my carrier was offering.

App

Beyond setting up the GigSky eSIM service and activating it, the GigSky app can be used for troubleshooting and to answer commonly asked questions through a Support section. There's also an account settings option, an inbox for communicating with GigSky if there are customer support questions, and a refer a friend section for referring friends for free credit.

While using the GigSky service, I didn't really open up the app at all because many of the settings are handled through the "Cellular" section of the main Apple Settings app.

Available Countries

GigSky's data service works in more than 190 countries around the world, with a coverage map available here. All North American and nearly all European and South American countries support the GigSky service, as do many Caribbean Islands.

Service is more limited in Asia Pacific, Africa, and the Middle East, but there are a few countries where it works.

Bottom Line

After overcoming a few hiccups that come with using a data-only service as a secondary option on an iPhone, I thought GigSky was simple to use, offered great coverage that rarely left me sans cellular connection, and ultimately, convenient.

Getting a second SIM or an eSIM plan in the country that you're traveling to is an option and is potentially more affordable than GigSky, but that can be a hassle if you're visiting multiple countries.

$50 for 5GB isn't the best data deal, but I found that data pot lasted me for nearly two weeks with regular use - uploading photos to Instagram, checking my email, responding to messages, using maps, and browsing the internet - though I did connect to WiFi where available, such as in hotels.

The GigSky service worked seamlessly even as I crossed country borders in Europe, and I didn't have to hassle with swapping out SIM cards, changing my phone number and fussing with iMessage, or finding different plans in countries where I don't speak the language.

GigSky was much more affordable than the plans offered via my own carrier here in the United States (Verizon charges $10/day for 0.5GB and then unlimited 2G) and I wouldn't hesitate to use it again on another multi-country trip. I might choose something more affordable if I were going to a single country, but you can't beat the convenience of a cell phone plan you can purchase and get going right on your device.

How to Buy

To use GigSky's service through the eSIM on a compatible iPhone XR, XS, or XS Max, you'll need to download the GigSky World Mobile Data app from the App Store. From there, plans are purchased within the app at prices starting at $10.

Note: GigSky provided MacRumors with a $100 data credit for the purpose of this review. No other compensation was received.

Tags: eSIM, GigSky

Top Rated Comments

itsmilo Avatar
90 months ago
Way too expensive even with its convenience. You can get like 40 GB of data for 10 € in France for example and use it all across Europe.
Score: 8 Votes (Like | Disagree)
catean Avatar
90 months ago
Gigsky has competiton : Truphone and Ubigi.

The convenience of having your phone number for sms and voice calls and using this worldwide data only services is priceless. It’s the reason why I upgraded from the X to XS.
Score: 3 Votes (Like | Disagree)
bikeoid Avatar
90 months ago
Re: Pocket dialing - I had a pocket dial with the iPhone XS; for the first time ever on any iPhone model for me. After also having a phantom flashlight activation, I finally found and turned off the irritating "Raise to Wake" and Accessibility / "Tap to Wake" which seems to have solved the problem.
Score: 2 Votes (Like | Disagree)
joshwenke Avatar
90 months ago
Apple's eSIM functionality seemed great at launch but there weren't a lot of ways to implement it right at launch. This is an example of a company who is early to the game in a significant part of the new iPhones. I enjoyed the review and thought it was more relevant than a lot of other articles where money/products is exchanged with MR.
Score: 2 Votes (Like | Disagree)
jclo Avatar
90 months ago
Maybe we’re talking about different things here. From Juli’s use case (and I’m sure many others), the biggest advantage of eSIM is being able to more simply use another number while traveling, without having to worry about accumulating exorbitant data roaming charges. Without a clear cut way of disabling data roaming, you might as well still have two phones.

I’m still not totally sure what Juli means when she says she was unreachable via iMessage to her domestic line. It still should have worked when she was on WiFi.

I guess at the end of the day, I want to have two numbers that the device can potentially respond to at any time, and I want to selectively use ONE for data. Is that possible?
I mean that when I disabled my Verizon number (in Settings, "Turn off this line") in an attempt to make sure I didn't accidentally use any VZW data, my iMessage stopped working entirely. It did not work on WiFi, and I don't know why. I didn't do further testing on this because I was in a foreign country and because removing my phone number also significantly broke things, so there may be some setup option where this does not happen. I do have email addresses associated with iMessage, but in my case, it just stopped working entirely with my primary number turned off even with GigSky associated with the secondary iMessage line.

It could have been a bug, or an early implementation issue because GigSky is data only with no associated number (which I suspect was the problem), or something that I did with the setup process. I don't know that everyone will run into this issue, but there are always going to be problems when changing or disabling the number associated with iMessage. I just wanted to make sure people are aware that things need to be set up carefully to avoid iMessage/FaceTime activation issues.

You can indeed use two numbers that can be responded to at any time while using just one for data if you set your Cellular Data setting to use the "Secondary" number while leaving the Voice line as the primary number and the iMessage line as the "Primary" number.

[doublepost=1546477510][/doublepost]
Wow! That pricing! What’s the point?

Most places, picking up a SIM is no more hassle then stopping at a kiosk in the arrivals hall. Takes five minutes and most countries have outstanding travel plans for tourists.

Worse yet is that it seems there is no way to just turn OFF your domestic line, except for Wifi to keep things like iMessage active.

The eSIM implementation seems pretty half baked at this point.
This. I travel to the UK once a year on average. There's a shop in Heathrow as soon as you exit customs. £30-40 (there are cheaper options) for a relatively large amount of data from a variety of local carriers, a local number, and great coverage. Just swap a SIM card (or use an eSIM-supporting carrier) and PAYG. Just remember to use an app (e.g. 1Password) for your 2fa-enabled services instead of SMS, which is arguably more secure (and I think more convenient, at least as implemented by 1P).
In this situation, there was no kiosk at the airport terminal where I arrived in the Czech Republic, I did not speak the language, and I did not have an opportunity to visit a cellular service store because of planned activities, so eSIM was simpler for me.

A local SIM you can swap in is DEFINITELY a better deal than eSIM at this point, but I do think eSIM is simpler than having to physically swap a SIM, though. Hopefully prices are going to drop as more and more carriers implement eSIM support and the technology matures.
Score: 2 Votes (Like | Disagree)
catean Avatar
88 months ago
@jclo @riverfreak Pardon my ignorance, but is data roaming per (e)SIM, or global for the phone? Thanks!
You can enable or disable data roaming for the SIM that is configured to be the data SIM. You can only have one SIM/eSIM in the iPhone as data source, and both as voice and text. So you leave data roaming on and select the eSIM/SIM you want to be used for data. The other one will be voice/text only.
Score: 1 Votes (Like | Disagree)

Popular Stories

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
iOS 26

iOS 26.2 Available Next Month With These 8 New Features

Tuesday November 11, 2025 9:48 am PST by
Apple released the first iOS 26.2 beta last week. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date....
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
homepod mini thumb feature

New HomePod Mini, Apple TV, and AirTag Were Expected This Year — Where Are They?

Wednesday November 12, 2025 11:42 am PST by
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen. Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
ios 26 digital id passport wallet

Apple Announces Launch of U.S. Passport Feature in iPhone's Wallet App

Wednesday November 12, 2025 9:15 am PST by
Apple today announced that iPhone users can now create a Digital ID in the Apple Wallet app based on information from their U.S. passport. To create and present a Digital ID based on a U.S. passport, you need: An iPhone 11 or later running iOS 26.1 or later, or an Apple Watch Series 6 or later running watchOS 26.1 or later Face ID or Touch ID and Bluetooth turned on An Apple Account ...
Tesla Charging

Tesla Working to Add Apple CarPlay Support to Vehicles

Thursday November 13, 2025 8:31 am PST by
Tesla is working to add support for Apple CarPlay in its vehicles, Bloomberg's Mark Gurman reports. Tesla vehicles rely on its own infotainment software system, which integrates vehicle functions, navigation, music, web browsing, and more. The automaker has been an outlier in foregoing support for Apple CarPlay, which has otherwise become an industry standard feature, allowing users to...
m1 chip slide

Five Years of Apple Silicon: M1 to M5 Performance Comparison

Monday November 10, 2025 1:08 pm PST by
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro. The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
iOS 26

Everything New in iOS 26.2 Beta 2

Wednesday November 12, 2025 3:29 pm PST by
Apple today provided developers with the second beta of iOS 26.2, which adds a few new features worth knowing about. Measure App Apple's Measure app now features a Liquid Glass design for the level, with two Liquid Glass bubbles instead of white circles. Games App There's now an option to sort games in the Games app Library by size, in addition to Name and Recent. CarPlay The...
apple intelligence erroneous support list

Apple Intelligence Apparently Too Smart for M1 Macs After Listing Error

Wednesday November 12, 2025 2:49 am PST by
Update: It took a day, but Apple has now corrected its Apple Intelligence device compatibility list to show support for the earliest Apple silicon Macs. The original article follows. Apple's website is causing some confusion among Mac owners, and for good reason – its device compatibility listing for Apple Intelligence appears to have dropped support for M1 Macs. The U.S. version...
iphone pocket%402x

Apple Debuts iPhone Pocket, a Limited Edition iPod Sock-Style Accessory

Tuesday November 11, 2025 1:23 am PST by
Apple has teamed up with Japanese fashion house ISSEY MIYAKE to launch iPhone Pocket, a 3D-knitted limited edition accessory designed to carry an iPhone, AirPods, and other everyday items. The accessory is like a stretchy pocket, not unlike an iPod Sock, but elongated to form a strap made of a ribbed, elastic textile that fully encloses an iPhone yet allows you to glimpse the display...