1SIM eSIM

OneSimCard.com

About this app

Stay connected for Less with the Free OneSimCard Global esim-Data Plans Starting at $1.69/GB
Tired of hunting for SIM cards abroad or paying sky-high roaming fees? OneSimCard’s prepaid international eSIM lets you connect instantly in over 200 countries and territories, with fast and reliable data starting at just $1.69/GB. Designed for global travelers, digital nomads, business professionals, and remote workers, our eSIM solution eliminates the hassle of traditional SIM cards while maximizing flexibility and savings.
For over 30 years, OneSimCard has helped travelers stay connected. Our eSIM delivers 5G-capable data with access to multiple networks in each country to ensure the best signal and quality—without roaming fees or long-term contracts. You’ll never wait for shipping or deal with physical cards again. Just download and go.
What is an eSIM?
An eSIM is a built-in digital SIM in your phone. It works like a physical SIM, but installs instantly via QR code or our app. No hardware, no delays.
How It Works:
1. Download the OneSimCard eSIM app.
2. Purchase a data plan for your destination.
3. Install the eSIM (internet connection required): youtu.be/dSMlu_jTeyM
4. Turn it on and connect when you land.
Why OneSimCard?
• Coverage in over 200+ countries and regions
• Rates starting at $1.69/GB with no hidden fees
• Multiple local networks in most destinations ensure stronger signal
• Choose local or global plans—prepaid with built-in controls
• Reuse the eSIM profile for all future travel
• Optional voice and SMS via our VoIP app
• Top up or change plans directly in the app
Popular Countries Supported:
Australia, EU, Canada, Japan, Mexico, UK, USA, United Arab Emirates, South Africa, Switzerland, Russia, Hong Kong, China, South Korea, Nigeria, Morocco, Turkey, Bermuda, Bolivia, Cambodia, Puerto Rico, and many more (200+!).
Perfect For:
• Tourists and backpackers
• Business travelers needing high-speed internet
• Digital nomads working abroad
• Airline crew, cruise staff, and global professionals
• Anyone looking to avoid roaming charges while staying connected
FAQs
What’s included in a plan?
Plans include 1GB to 20GB of data, valid for 1, 7, 15, or 30+ days. Plans are easily topped up through the app.
Does it include a phone number?
Yes. With our VoIP app and Personal Extra Number, you can get a U.S. or Canada number for voice and SMS. More info: www.onesimcard.com/local-country-sim-phone-numbers
Compatible Devices:
Most unlocked, eSIM-capable smartphones. See: www.onesimcard.com/international-sim-card/datamax-esim
Can I use my main SIM too?
Yes! Most phones support dual SIM functionality. Keep your primary SIM active for texts and 2FA, while using OneSimCard eSIM for affordable travel data.
Does the eSIM expire?
No—it’s reusable for future trips. Simply top up or switch plans anytime. Terms: www.onesimcard.com/terms-of-use
Get Started Today
No more SIM swaps, no roaming stress—just reliable, affordable, global connectivity at your fingertips.
Learn More:
Website: www.onesimcard.com
Blog: travel.onesimcard.com
FAQs: www.onesimcard.com/faq
Support: www.onesimcard.com/contact-support
Facebook: www.facebook.com/OneSimCard
Privacy Policy: www.onesimcard.com/privacy-policy
Terms & Conditions: www.onesimcard.com/terms-of-use

Ratings and reviews

Clicking on the eSIM icon takes me to a "days" page that says my data is inactive and has not been activated. I wonder why I am able to access data and it's cumulative use is shown on my desktop? What else is this app for as no other links or tabs are visible?

Very clunky. Freezes allot using Google Pixel 7, so much so that I can't say what the functionality is like. Nothing worked. If you need to use eSim you will need to be happy to use it through a PC web browser to manage your account.

Very practical for people needing International phone service that is inexpensive. It is however very complicated to set up, mainly because it is not compatible with many phone brands!