Unisim eSIM – Review & Full Test 2026

🌍

Countries covered

170 countries

💶

Starting at

9,20 €

📊

Data

Pay-per-kilobyte (no fixed packages)

❌

Calls/SMS

No

One eSIM for over 170 countries, with a global balance usable everywhere.

Pay-as-you-go model without expiring plans, suitable for irregular travel.

Data rates up to 5 times cheaper than traditional roaming.

Quick installation via the app and automatic connection to local networks.

24/7 human support with a refund guarantee in case of problems.

Hotspot sharing generally allowed at no extra cost.

Official ratings

Destinations & coverage

By region

Key points

✅

Advantages

  • ✓ Billing model by kilobyte avoids paying for unused data.
  • ✓ Global balance without expiration, convenient for travelers who travel multiple times a year.
  • ✓ Wide coverage with over 170 destinations, including less common countries.
  • ✓ Clear app enabling quick installation and balance management.
  • ✓ Hotspot sharing possible with other devices at no additional fees.
  • ✓ Generally very positive online reviews regarding service quality and support responsiveness.
⚠️

Disadvantages

  • ✗ Cannot make traditional voice calls or send SMS through the eSIM.
  • ✗ Prices are very attractive compared to roaming but may still be higher than some local offers.
  • ✗ Network quality depends on partner operators in each country and may vary in remote areas.
  • ✗ Service requires a compatible eSIM device, which excludes some older smartphones.

Customer reviews

✓ Verified traveler

5/5

“

This user explains having long searched for a service allowing the purchase of an eSIM with a Russian bank card and considers Unisim the best, highlighting internet quality, very low rates, a practical site, and fast support.

✓ Verified traveler

5/5

“

He describes a hassle-free installation, solid connections in Belgium, and high LTE speeds, while emphasizing the absence of unpleasant roaming bill surprises.

✓ Verified traveler

5/5

“

The user states that the eSIM worked perfectly in all countries visited, appreciates the quick support, and paying only for what he consumes, choosing Unisim as the solution for all future trips.

Google Play

5/5

“

This person is very satisfied with prices much lower than classic SIMs, as well as very fast and helpful support, to the point of wanting to give a score higher than the maximum.

July 5, 2026

Google Play

5/5

“

He highlights an easy balance transfer to a new phone, several years of usage in many countries, and great satisfaction with the offered rates.

June 9, 2026

Description

Unisim is an international eSIM solution designed for travelers who want reliable mobile internet without a physical SIM card or complicated plans. A single eSIM covers more than 170 countries with a pay-per-kilobyte model: you only pay for the data actually used and your global balance never expires. Rates can be up to 5 times cheaper than traditional roaming, with simple installation through a mobile app, free hotspot sharing, and a 100% refund guarantee in case of issues. Ideal for frequent travelers, digital nomads, and professionals moving between countries.

How it works

On iPhone, dial *#06# and check for the display of an EID number; generally, make sure your smartphone supports eSIM in its technical specifications.

Download the Unisim app from the App Store or Google Play, then open it on your compatible eSIM device.

Register with your email address, which will be used to purchase and manage the eSIM, then verify your account.

Follow the app instructions to generate and install the eSIM profile, usually via a QR code or guided installation in phone settings.

Add funds to your global balance starting from €10, using Apple Pay or a bank card, then select your desired currency in the app.

Before or upon arrival in the country, activate the Unisim profile in device settings and enable roaming data to allow connection to local networks.

Regularly check your balance and usage in the app, use hotspot sharing if needed, and top up on demand when your balance runs low.

Alternatives

FAQ

For an itinerary covering several European countries, Unisim allows you to use a single eSIM and a global balance in each destination, without changing cards or subscribing to separate plans.

The provider states that hotspot sharing is free, allowing you to use your phone as an access point for a computer, tablet, or your loved ones' devices.

The service focuses on mobile data, without native voice call or SMS functionality; it is recommended to use messaging and VoIP apps.

You are billed per kilobyte of data actually used, with no rounding or predefined expiring packages, avoiding payment for unused gigabytes.

The global balance with Unisim is presented as having no expiration date, so you can reuse it on future trips.

On iPhone, you can dial *#06# and check for an EID. For other devices, check network settings or the technical sheet to confirm eSIM compatibility.

Unisim offers a 100% refund guarantee when the problem cannot be resolved by support, securing the purchase for travelers.

The Unisim app allows you to check your balance and consumption in real time, manage top-ups, and control usage to avoid unpleasant surprises.

Company info

Legal name: Unisim LLC

Address: Sheridan, WY, United States

Email: [email protected]

Website: https://unisim.net

Support

24/7

Accepted payments

Apple Pay, Google Pay, bank cards

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