How We Research and Review Our Guides

This page explains who publishes the Atlas eSIM blog, how our guides are researched, how our comparisons work and how we make money. If something in a guide looks wrong or out of date, the last section tells you how to reach us.

Who publishes this blog

The blog is published by Atlas eSIM, a brand operated by ATLAS FACILITY LLC, a company registered in Wyoming, USA. Atlas eSIM sells travel eSIM data plans for more than 160 countries. We are a connectivity reseller: network access and eSIM provisioning are provided by a licensed telecom partner and its partner mobile operators. Company details are on our About page.

How we make money

When a guide links to atlas-esim.com, it links to our own store, and we earn money if you buy a plan there. We say so here, and next to the plan links in our articles, so you can weigh our advice with that in mind.

Our guides also cover the alternatives to buying from us: local SIM cards, your home carrier’s roaming, pocket Wi-Fi and staying on Wi-Fi. Most guides include a section on when a travel eSIM is the wrong choice, and when another option suits a trip better, the guide says so.

How our comparisons work

Our “best eSIM” articles help you choose a plan; our travel guides explain coverage and setup. Comparisons use the same criteria for every option, including our own plans:

  • which local network the plan connects to;
  • data allowance and how long the plan stays valid;
  • whether you can share the connection with a laptop or another phone;
  • how top-ups work if you run out;
  • cost per gigabyte for typical trip lengths;
  • support in English when something goes wrong.

Prices change often, so articles describe price ranges and what drives them rather than quoting competitors’ prices that would quickly go stale.

Sources and limits

Coverage statements are checked against primary sources where they exist: the operators’ own coverage maps and national regulators, such as Ofcom’s coverage checker in the United Kingdom. Rules such as SIM registration link to the official text or to a legal analysis of it. A coverage map shows where a network is built, not the signal you will get inside every building or valley, so we treat maps as a guide rather than a guarantee.

How much data a trip needs is given as a typical range for common uses, not a measurement of your own usage.

Dates and updates

Each guide shows when it was published, when it was last updated and, where relevant, when its facts were last checked. We update guides when networks, prices or local rules change.

Who writes the guides

Guides are published by the Atlas eSIM Editorial Team and follow the standards on this page.

Corrections

If you spot an error, a rule that has changed or a coverage claim that does not match your experience, tell us through our contact page. We check every report and correct the guide when it is wrong.