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SimSIM is a travel eSIM app that gets you mobile data in 200+ countries — instantly, from your phone, in about a minute. An eSIM is a digital SIM card built into your phone: there’s no plastic card to swap, no SIM tray to fumble with at the airport. SimSIM runs as a second eSIM alongside your regular SIM, so your phone number stays exactly where it is and calls and texts keep arriving as normal while SimSIM handles the data abroad.

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What you get with SimSIM

200+ destinations

Find your country in seconds. Regional plans cover whole trips across multiple borders.

Keep your number

SimSIM runs alongside your regular line. Calls and texts stay on your usual number — nothing changes there.

One clear price

You see the full price before you buy. No overage fees, no roaming bill waiting when you get home.

Top up anytime

Running low mid-trip? Add more data in two taps inside the app. No reinstall, no new QR code.

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What SimSIM is not

SimSIM is a data-only eSIM. Voice calls and SMS are not included. Apps like WhatsApp, Telegram, Google Maps, and Uber work perfectly over data.

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Supported apps

SimSIM gives you a data connection that works with all the apps you already rely on when you travel. WhatsApp, Telegram, Google Maps, Airbnb, Booking.com, Uber, and Trip.com all work seamlessly over your SimSIM data connection — no extra setup required.

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Need help?

If you have a question before or after your trip, reach out to the SimSIM support team:

Related topics

SimSIM Coverage: 200+ Countries and RegionsSimSIM Frequently Asked Questions