Ubigi

Ubigi isn't a startup reselling capacity it doesn't control. It's a product of Transatel, a French mobile network operator that NTT DOCOMO owns outright, which means Ubigi negotiates directly with local carriers rather than buying through a middleman. That shows up mainly in consistency: travelers report fewer dropped connections and clearer roaming behavior than with some marketplace-style competitors, since Ubigi is effectively both the seller and the network operator's partner.

Pricing favors people who buy in bulk: a small 1GB, 30-day plan runs around $6, but per-gigabyte cost falls to roughly $2 to $4 once you're buying 10GB or more, and country-specific plans in cheaper markets like Ukraine can dip under $0.50 per gigabyte. There's no setup or activation fee, and the install-once model means you don't need a new eSIM profile for every country on a multi-stop trip through a covered region. Ubigi is data-only with no voice or SMS built in. It suits frequent travelers and business users who want a plan that keeps working with minimal fuss more than it suits someone chasing the single cheapest headline price.