SimSiz: eSIM & 2nd Number

Travel eSIM & Extra Numbers

Travel, Work & Connect — All With SimSiz

SimSiz lets you stay connected anywhere with eSIMs for global data and instant second phone numbers — all from one simple app.

No physical SIM cards. No roaming surprises. Just fast, flexible connectivity wherever life takes you.

What You Can Do With SimSiz

Get eSIMs for 200+ countries and regions

Connect to local mobile networks worldwide in minutes. Perfect for travel, business trips, and remote work.

Add a second or virtual phone number

Get an extra number for calls and texts without changing your main SIM. Ideal for work, online accounts, or privacy.

Instant setup, fully digital

Buy, install, and activate directly from the app — no stores, no paperwork.

Use multiple numbers on one device

Switch between your primary line, eSIMs, and virtual numbers anytime.

What Is an eSIM?

An eSIM is a digital SIM built directly into your phone. It works like a physical SIM card but can be installed instantly — no swapping, no waiting. With SimSiz, you can purchase an eSIM, install it on your device, and connect as soon as you arrive at your destination.

Why Choose SimSiz?

• eSIM coverage in 200+ destinations • Second & virtual phone numbers in one app • No roaming fees or hidden costs • Local, regional, and global plans • Fast activation in minutes • Keep your main SIM active • Secure, reliable connections

How It Works

1 Download the SimSiz app

2 Choose an eSIM or second number

3 Install with guided steps

4 Activate and stay connected

That’s it — you’re online.

Perfect For

• Travelers and frequent flyers • Digital nomads and remote workers • Business users who need a second line • Anyone who wants flexible, affordable connectivity

Compatible Devices

SimSiz supports most modern smartphones with eSIM capability.

Check compatibility inside the app before purchase.

Stay Connected Without Limits

Whether you need mobile data abroad, a second number for work, or a virtual line for privacy — SimSiz gives you total control over your connectivity.

Download SimSiz and connect your way.