One eSIM. Zero stress.

onesim™ keeps you online across the world with a single eSIM. No plastic, no roaming shock.

Coming soon

The best eSIM for travelers

Setup your eSIM through the app in seconds.

One eSIM keeps you online in 190-plus countries, automatically choosing the fastest local network upon arrival.

Flat-rate daily, weekly, or regional passes—see total cost upfront and never fear surprise roaming charges again.

Keep your physical SIM active for calls and texts while onesim handles data, perfect for banking or two-factor logins.

Track data in real time, top up with credit card, and switch plans without contacting customer support.

Reach live agents by WhatsApp or email anytime; average response under fifteen minutes, even during airport layovers.

Download the app and sign up for an account.

Select the destination and choose your data plan.

Install the eSIM and enjoy your data.

Coming soon