Onesim: eSIM for Travel

Travel without roaming fees. Install an eSIM in minutes and get instant mobile data in 190+ countries — right from your iPhone, no physical SIM needed.

Onesim keeps you connected wherever you travel. Buy a digital eSIM data plan, install it in minutes, and go online the moment you land — no roaming bills, no hunting for a local SIM, no swapping cards.

WHY ONESIM • Coverage in 190+ countries and regions • Instant delivery — your eSIM is ready right after purchase • Easy install — activate directly in iPhone Settings, no QR scanning needed • Keep your number — your primary SIM stays active for calls and texts • Flexible plans — pick the data and validity that fit your trip • Transparent pricing — pay only for what you need, no hidden roaming charges

HOW IT WORKS

1. Choose your destination and a data plan
2. Pay securely with Apple Pay or card
3. Install your eSIM straight to your iPhone
4. Turn it on when you arrive and you're online

PERFECT FOR • Travelers and tourists who want data the moment they land • Business trips and remote work abroad • Digital nomads juggling multiple countries • Anyone tired of expensive roaming

SECURE & SIMPLE Sign in with Apple, Google, or email. Manage your plans, top up, and track your data usage — all in one app.

Requires an eSIM-compatible iPhone. Download Onesim and stay connected on your next trip.