Kolet

Kolet is a Paris-based startup founded in 2024 that focuses exclusively on data-only eSIMs, keeping the pricing lean and transparent. Their rates start at €1.50 per gigabyte across 190+ destinations, making them competitive for travelers who don't need voice or SMS. Support is available 24/7 through the app itself, so help is just a message away when you're on a Caribbean beach trying to troubleshoot connectivity.

This option appeals to digital nomads and tech-savvy travelers who value straightforward, pay-per-gigabyte pricing over bundled plans. Since Kolet launched recently, they've kept their feature set focused and their overhead low, which translates to better rates than older, larger competitors. If you're island-hopping across the Caribbean and want to pay only for data you actually use, Kolet delivers that philosophy cleanly.