DuaSim eSIM – Review, Test & Promo Code 2026

🌍

Countries covered

200 countries

💶

Starting at

1,00 €

📶

Network

5G

📊

Data

Starting at 1 GB

❌

Calls/SMS

No

Wide coverage in over 200 countries with convenient regional plans for multi-destination trips.

Instant activation via QR code with no waiting or physical SIM card required.

Savings up to 90% compared to traditional roaming, with transparent pricing.

Simple app interface for iOS and Android, keeps your personal SIM active.

24/7 multilingual support for quick assistance.

Official ratings

Destinations & coverage

By region

Key points

✅

Advantages

  • ✓ Ultra-fast and intuitive installation via the app.
  • ✓ Wide range of flexible data plans by country or region.
  • ✓ Multiple secure payment methods, no contract required.
  • ✓ Reliable coverage in popular areas like Europe and Asia.
  • ✓ Compatible with recent eSIM-enabled smartphones.
⚠️

Disadvantages

  • ✗ Relatively new app with few user reviews.
  • ✗ The list of covered countries is not publicly exhaustive.
  • ✗ Variable speeds depending on local partner operators.
  • ✗ Requires an eSIM-compatible device, excluding older models.

Customer reviews

Google Play

5/5

“

Excellent eSIM app! Internet connection worked perfectly throughout my trip in Malta. Quick and easy setup, stable and reliable speed.

January 1, 2026

App Store

4/5

“

Simple and efficient for travel eSIM, activation in seconds without hassle.

February 1, 2026

✓ Verified traveler

4/5

“

Good overall experience, stable data in Europe, responsive support.

March 1, 2026

Description

DuaSim offers eSIMs for travelers covering more than 200 countries with data ranging from 1GB to unlimited, for durations from 7 to 365 days. Operated by OctoSEC AS in Norway, it provides fast activation via QR code, regional plans (Europe 39+ countries, Asia, etc.), secure payments, and 24/7 support. Perfect for tourists, digital nomads, and professionals on the go seeking simplicity and savings against expensive roaming costs.

How it works

Install the app from the App Store or Google Play on an eSIM-compatible device.

Select the country or region and browse available data plans and durations.

Choose the data volume and validity, then pay by credit card or digital wallet.

The QR code is sent by email or instantly via the app after payment.

Scan the QR code in Settings > Cellular > Add Cellular Plan.

Select the DuaSim eSIM for mobile data and turn on data roaming.

⚠️ If it fails

✅ Check device compatibility and ensure you have a stable internet connection. Restart your device or consult the DuaSim FAQ.

✅ Toggle airplane mode on and off, select the eSIM for data and roaming. Try restarting the device.

✅ Monitor your usage in the app, disable automatic updates and high-definition video streaming.

Alternatives

FAQ

Choose a regional Europe plan (over 39 countries) with 5-10GB for short city stays, or more for longer trips.

Yes, on most plans, tethering is allowed except for some unlimited plans; check specific conditions by destination.

iPhone XS and later models, Google Pixel 3 and later, Samsung Galaxy S20 and later, as well as recent eSIM-compatible Android devices; a guide is available in the app.

Refund policy depends on purchase; contact 24/7 support promptly for any technical issues.

Yes, on dual SIM devices, you can use the eSIM for mobile data and your personal SIM for calls and SMS.

You can track your usage in real-time via the DuaSim app or your phone settings.

DuaSim partners with local 4G and 5G operators in each country to ensure the best possible coverage.

Company info

Legal name: OctoSEC AS

Address: Kristiansand, Norway

Email: [email protected]

Website: https://duasim.com

Support

24/7

Accepted payments

Credit card, Google Pay, Apple Pay

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