Corelinx combines travel eSIM data plans with free browser-based travel utilities. Travellers can use its Travel Planner to organise a route and itinerary, estimate mobile data needs with the Travel Data Calculator, and check device compatibility before choosing an eSIM. The free tools are available on the website without an account. Optional prepaid travel eSIM plans are sold separately. Coverage, allowances, validity and installation requirements depend on the selected plan and compatible device.