Transparency
Editorial Policy
Every number on this site ties back to a public source. This page explains where our data comes from, how we verify it, and how we handle money, mistakes, and editorial decisions.
Who we are
eSIM vs Roaming is an independent comparison site. We do not sell eSIMs, SIM cards, or phone plans. We do not work for any carrier or eSIM provider. Our job is simple: pull the real price from the carrier, pull the real price from the eSIM provider, and show you the gap.
We fund this work through affiliate commissions. When you buy an eSIM through one of our links, the provider pays us a referral fee. That fee comes out of the provider's margin. It does not increase the price you pay. You can read the full disclosure in the affiliate section below.
We started this site because carrier roaming pricing is confusing on purpose. A $10/day pass sounds simple until the bill shows 14 days of charges for a 7-day trip. We wanted a place that shows the math and lets readers decide for themselves.
How we source carrier rates
Every carrier rate on this site is pulled directly from the carrier's public pricing page. We do not use third-party databases, press releases, or user-reported figures as primary sources. The rate you see on our page is the rate the carrier publishes on theirs.
Our primary carrier sources are:
- AT&T: att.com/international for International Day Pass pricing
- Verizon: verizon.com/plans/travelpass for TravelPass daily rates
- T-Mobile: t-mobile.com/cell-phone-plans for international roaming add-ons and included benefits
- Vodafone UK: vodafone.co.uk/roaming for Roaming Passport rates
- EE: ee.co.uk/help/roaming for Roam Abroad zone pricing
- Xfinity Mobile: xfinity.com/mobile/international for International Pass pricing
We re-check each carrier's pricing page on the first week of every month. If a carrier changes its rates mid-cycle, we update the affected comparison pages and note the change. We archive screenshots of carrier pricing pages so each figure can be independently verified.
When a carrier runs temporary promotions or limited-time offers, we note the promotion but do not use it as the baseline rate. Comparisons always use the standard published rate, not a promotional price that may expire.
How we source eSIM prices
We check eSIM plan prices weekly across the four providers we cover: Airalo, Holafly, Saily, and Nomad. Prices are taken from each provider's public plan pages and verified against their mobile apps.
For per-country comparisons, we quote the cheapest plan that covers a typical one-week trip. When larger bundles offer better per-GB value, we show those alongside the base plan. Where a provider offers unlimited daily plans (Holafly), we calculate the 7-day total so it can be compared directly against per-GB alternatives.
eSIM prices can change between weekly checks. If a reader reports a price discrepancy, we verify and update within 24 hours. Each comparison page shows the date prices were last verified.
Fact-checking process
Every comparison page goes through a two-step verification before publication:
- Step 1: Data pull.We collect the current rate from the carrier's website and the current eSIM prices from provider plan pages. Each figure is recorded with its source URL and the date checked.
- Step 2: Manual spot check. A second reviewer visits the carrier and provider pages independently to confirm the figures match. If the two pulls disagree, we flag the discrepancy, re-check, and use the figure that appears on the live page at the time of review.
Price errors are corrected within 24 hours of being reported or discovered. Factual errors in editorial content (wrong country coverage, incorrect plan features) are corrected and logged on the corrections page.
Affiliate relationship disclosure
We earn affiliate commissions from some of the eSIM providers featured on this site. When you click an affiliate link and purchase a plan, we receive a referral fee. This is how we pay for the research, hosting, and ongoing price verification.
Here is what the affiliate relationship does and does not affect:
- Commissions do not change your price. The eSIM plan costs the same whether you use our link or go directly to the provider.
- Commissions do not affect rankings. Providers are ranked by coverage, price, app quality, and support response time. A provider cannot pay to be ranked higher. If a non-affiliate provider scored better on our criteria, we would rank it first.
- Commissions do not affect price comparisons. The carrier rate and eSIM price shown on every comparison page are the actual published rates. We do not inflate carrier prices or deflate eSIM prices to make the savings gap look larger.
- All affiliate links are marked. Links to eSIM providers carry the
rel="sponsored"attribute. Every content page that contains affiliate links includes a disclosure note above the first provider section.
We would rather lose an affiliate partner than publish a misleading comparison. If a provider raises prices to the point where carrier roaming is cheaper for a specific destination, our comparison page will show that. The numbers come first. The business model comes second.
Content update schedule
We maintain a fixed update cycle to keep data current:
- Carrier rates: Verified monthly (first week of each month).
- eSIM provider prices: Verified weekly (every Monday).
- Guide content: Reviewed quarterly for accuracy. Guides covering installation steps, compatibility lists, and country-specific notes are updated when providers change their processes.
- Breaking changes: If a carrier announces a rate change or a provider modifies coverage, we update the affected pages within 48 hours.
Editorial independence
No carrier or eSIM provider has reviewed, approved, or influenced any content on this site before publication. We do not accept sponsored placements, paid reviews, or advertorial content. No provider has been given advance notice of our rankings or comparisons.
We do not use carrier-provided data sheets or marketing materials as sources. All figures come from publicly available pricing pages that any reader can verify. When a provider offers to send us talking points or pre-written copy, we decline.
Our editorial decisions are based on one question: does this information help the reader make a more informed decision about travel data? If the answer is yes, we publish it. If the information serves a provider's marketing goals but not the reader's decision, we leave it out.
Error correction policy
We take accuracy seriously. If you find an error on any page, email corrections@esimvsroaming.com with the page URL, the error, the correct information, and your source.
- Price errors: Corrected within 24 hours of confirmation. The correction is logged on the corrections page with the date, the original figure, and the corrected figure.
- Factual errors: Corrected and noted in the correction log. The original text is preserved in the log entry so readers can see what changed.
- Disputed claims: If a carrier or provider disputes a figure, we re-verify against the public source. If the dispute is valid, we correct and log it. If the public source confirms our original figure, we note the dispute and explain our sourcing.
All corrections are recorded at /corrections. We believe a visible correction log is a stronger trust signal than pretending errors never happen.
AI and automation disclosure
Price comparison tables on this site are generated from verified data using structured templates. The carrier rate, eSIM price, and savings calculation on each country page are computed from the figures collected during our weekly and monthly verification cycles.
Editorial prose, including country-specific notes, carrier analysis, and guide content, is written by the research team. All content is reviewed for accuracy before publication.
We use automated monitoring to detect when carrier pricing pages change between manual checks. If an automated check flags a price change, a team member verifies the new rate manually before updating any comparison page.