onesim is a mobile app that gives you one eSIM for every destination. Install it once and keep it: before each trip, pick a package for any of 195+ destinations and it goes onto the same eSIM, so there's no new install or QR code every time. Buying, setup, usage tracking and top-ups all happen in the app in a few taps. We built it for people who travel often and want reliable data at affordable prices, without juggling a different eSIM for every country.
