Ubigi: Travel eSIM mobile data

Review by eFreeware

If you travel often enough that buying a local SIM card at the airport has become a routine chore, Ubigi is the kind of app you would want on your phone before the trip starts. It is a free app from Transatel that sells prepaid mobile data through an eSIM, the virtual SIM built into many recent phones, tablets and laptops. You pick a plan for the country or region you are visiting, install the eSIM, and turn the line on when you land.

The appeal is straightforward: one app covers a long list of destinations, and you do not have to find a shop, hand over your passport or swap a physical card. The developer puts the coverage at more than 200 destinations, with 5G available in over 60 of them. For anyone who moves between countries regularly, that reach is the main reason to pay attention.

It has been on Google Play since June 2018 and has passed a million installs, with an average rating of 3.8 from around 8,000 ratings. That is a respectable but not glowing score, which tells me this is a service people find useful when it works for their route and less so when it does not.

A prepaid data line that lives inside your device

The core idea is that the eSIM replaces the plastic card. Because it is built into the hardware, you can activate a data plan without inserting or swapping anything. The app walks you through choosing a plan, installing the eSIM before you leave, and switching the line on at your destination, where it activates on its own.

Plans come in several shapes. There are local plans for a single country and regional ones that cover a group of countries, and you can buy them as one-off purchases or as recurring plans if you want data to keep renewing. Sizes run from 500MB up to unlimited, so there is room to match the plan to a short city break or a longer stay.

What I like about the structure is that it removes the guesswork around roaming. You are buying data at something closer to local rates rather than paying your home operator's roaming charges, and the app is where you manage the line, watch your usage and top it up.

SmartStart, top-ups and the practical details

Two features stand out for how they handle the awkward parts of arriving somewhere new. SmartStart is designed so your data kicks in as soon as you land, which saves you from hunting for airport Wi-Fi just to get online. The top-up system is built to work even when you have no Wi-Fi and no data left, which matters if you run out mid-trip and need more before you can do anything else.

The app also supports hotspot sharing, so you can pass your connection to a laptop or a travel companion's device. That turns a single plan into something a couple or a small group can lean on, at least for lighter use.

For people who already have a Ubigi eSIM from a QR code, the app doubles as the management side: you create an account, track how much data you have used, and recharge when needed. That makes it useful beyond the initial purchase.

SmartIP and the connected-car option

SmartIP is the newer addition, and it is the feature I would expect to interest people who care about how their connection looks to the sites they visit. It lets you browse with either a local IP address or one from your home country, switched with a tap, and the developer pitches it as an alternative to a VPN. It is available in selected markets rather than everywhere.

There is also an in-car Wi-Fi service for certain car brands and models. If your vehicle is on the partner list, you can link the eSIM as a connected-car device and share the connection with up to eight devices at once, which is aimed at keeping passengers entertained and the car's infotainment system online. Activation is described as pre-installed and ready to use, with top-ups handled in the app.

This side of the service is narrower than the travel plans. It depends on your car being supported, so it is a bonus for some users rather than something everyone can use.

What you need before you can use it

The main requirement is an eSIM-capable device. Ubigi runs on a range of smartphones, tablets and laptops, including recent iPhones and iPads, Samsung Galaxy S models, Google Pixel, Huawei, Xiaomi, Motorola Razr and Surface Duo devices, among others. The developer suggests dialing *#06# to check: if an EID appears, the device supports eSIM. That check is worth doing before you buy a plan.

You also need to create an account, and you need a data plan for the places you are going. Coverage is broad, but it is not the same as a home contract: 5G is limited to the destinations where it is offered, and SmartIP is available only in select markets. If your trip depends on either of those, it is worth confirming that your destination is covered before you commit.

The app itself is free to download and carries no ads. The average rating of 3.8 suggests the experience is not flawless for everyone.

The travelers this fits best

The people most likely to get value here are frequent travelers, people who split their time between countries, and digital nomads who need a working connection wherever they land. Anyone who wants to avoid roaming charges and does not want to deal with a physical SIM card is squarely in the target group. The range of plan sizes, from small top-ups to unlimited, means both a week-long vacation and a months-long stay can be covered.

It also suits travelers who want to share a connection, since hotspot support is part of the package, and car owners whose vehicles are on the supported list get an extra use case. If you mostly stay in one country and already have a data plan you are happy with, the case for a travel eSIM is weaker, but that is a matter of your own habits rather than a fault in the app.

The free download makes trying it low-risk: you can install the app, look at the plans for your destination and decide from there.

My recommendation on Ubigi

Ubigi is a well-established option in the travel eSIM space, and its strengths are the breadth of coverage, the flexibility of the plans and the small conveniences like SmartStart and topping up without Wi-Fi. The free app and the absence of ads make it easy to keep on your phone between trips.

The trade-offs are the ones that come with the format: you need an eSIM-capable device, 5G and SmartIP are not available everywhere, and the connected-car feature depends on your brand being supported. The 3.8 average rating is a reminder that no service of this kind satisfies every route and every user.

If you travel internationally more than once or twice a year and want data sorted before you reach the airport, this is a sensible app to install and price up for your next trip. If your travel is occasional and your home plan already covers you abroad, the value is less obvious.

What's new in version 3.8.3

We've introduced behind-the-scenes refinements to the Ubigi app, including performance and security enhancements plus minor bug fixes, to ensure a smoother and more reliable experience.