About Roamsheet Research

A note from our founder

Hi, and thanks for stopping by.

Trips rarely stop at one border. London and Paris, Istanbul and the Greek islands, Tokyo and Seoul: that's how people actually travel. Yet almost every eSIM guide we found compared one country at a time. Few answered the simple question every two-country trip raises: do I buy one plan that covers both countries, or two separate ones, and what will it really cost me?

So we started Roamsheet to answer exactly that, honestly. We read prices from each provider's own website, write down the date and the page, and do the math for your trip. When two cheap local plans beat one regional plan, we say so. If a plan slows down after a few gigabytes a day, you'll see it in the notes, not in the fine print.

We want this site to be the page you'd want open before booking a trip: no fluff, no paid rankings, just numbers you can check. If something is wrong or out of date, please tell us. We read every message and fix things fast.

Safe travels,
The founder of Roamsheet, on behalf of Roamsheet Research

What we do

• Read plan prices in US dollars from each provider's own website and record the date and the page.
• Work out what a typical trip on each route costs for light, standard and heavy use, and show one plan and two plans side by side.
• Check which regional plans actually include both countries of a route, with a link to the provider's country list.
• Publish the data openly (CSV, JSON) so anyone can check it.

What we don't do

• We don't test network speed or coverage on the ground, and we don't pretend to. Where we state a local fact, we link its source.
• We don't sell placements. Plans are ordered by price for the trip on each page.
• We are independent: no eSIM provider or mobile operator owns, funds or pays us, and there are no affiliate links on this site.

How we keep it fresh

We aim to recheck prices at least every 14 days, and our publishing check refuses anything older. Every price on the site shows the date we checked it. The full method is on the methodology page.

Say hello

Spotted a price that changed, a mistake, or a route you'd like us to cover? Write to [email protected].