Viasimo is a travel eSIM service that provides prepaid data plans for over 190 destinations worldwide. Its primary function is to enable mobile internet access abroad without requiring a physical SIM card, roaming fees, or long term subscriptions. Users purchase a data plan before their trip, install the eSIM via email, and upon landing their phone connects automatically. The service offers data plans starting from $1.29 for popular destinations such as the United States, France, Italy, Thailand, Japan, and Spain. Each destination typically has multiple plan options. Viasimo includes a compatibility check tool for users to verify if their device supports eSIM technology. A kiosk locator feature is also available for in person purchases in some locations. Typical use cases include travelers who want internet access immediately upon arrival, avoid surprise bills, and eliminate the need to swap SIM cards. The workflow involves purchasing a plan before departure, receiving an installation email, following the setup instructions, and then staying connected as soon as the user lands. The process is designed to be completed in minutes. Technically, the service relies on eSIM (embedded SIM) technology, which is supported by most modern smartphones. Activation is near instantaneous once the plan is installed and the device connects to a local network. No physical card handling or contract is required, making it suitable for short trips, business travel, and multi destination itineraries.