How estimates and matches work
This page explains how the data estimate and the comparison work. Simple eSIM Match estimates data for a trip and compares stored provider information. It does not sell an eSIM. It does not guarantee a live checkout price, network coverage, speed, or that a plan will activate on a phone.
This explanation was last checked 2026-09-29. That date belongs to this text. It is not a live price date.
Provider information last checked is listed with each source below. A snapshot review date is not a live price date.
Questions about this explanation: support@simpleesimmatch.com. Provider or partnership questions: partners@simpleesimmatch.com.
How the data estimate is calculated
The estimate is for one traveler. Each daily assumption below is multiplied by the number of trip days. The return day is included: the count runs from the start date through the end date, and a same-day trip counts as one day. That multiplication is not rounded.
- Essentials 0.25 GB per day
- Everyday 0.75 GB per day
- Heavy 1.5 GB per day
- Streaming & hotspot 3.0 GB per day
What the 20% buffer means
Recommended data is the estimate multiplied by 1.2. The extra 20% is a planning margin. It does not mean the trip will stay within that amount, and it is not a coverage or speed promise. Amounts shown in gigabytes use at most two decimal places. A data shortfall on a plan is rounded to two decimal places for display. The recommendation itself is not rounded before plans are compared.
1.2
Exact plans, provider pages, regional options, and global options
An exact catalog plan is a stored package whose data covers the recommended amount and whose validity covers the trip length. A provider page opens that provider’s page for the destination so a package can be chosen there. It is not an exact gigabyte match. A verified regional option is shown only when every selected country is inside that option’s verified coverage. A verified global option is shown only when every selected country is on that provider’s verified coverage list. On a multi-country result, every selected country must be in the verified coverage.
When a price and a price per GB can be shown
A price is shown only when a verified amount and currency are recorded for that plan. A missing price is never treated as zero, and it is never sorted as zero. Price per GB is the verified price divided by the known gigabyte allowance, shown to two decimal places. Unlimited plans do not get a price per GB. Older Maya price constants are not displayed. A Maya price appears only when that row itself has a verified amount and currency.
How the highlighted plan is ordered
Only plans that are marked available and verified, cover every selected country, and have a valid outbound link can move up this order.
- Plans that also cover the recommended data, cover the trip length, and have a positive verified price come first.
- Then plans that cover the data and the trip length without requiring a price.
- Then plans whose validity covers the trip.
- Then plans whose data covers the recommendation. An Unlimited plan counts as covering the data.
- Then a smaller gap below the recommended data.
- Then a lower verified retail price. A missing price is not sorted as zero.
- Then less unused data. An Unlimited plan has no finite unused amount, so a finite plan comes first when the earlier checks are equal.
- Then less unused validity.
- Then a stable identifier, using English alphabetical order.
Each other provider still appears once, in a fixed sequence from the code. The number of plans a provider has does not change that sequence. Affiliate commission is not an input to this order.
Where the information comes from
Usage rates are the daily assumptions on this page. Provider rows below use the date stored for that source. None of those dates is a live checkout price. A provider that is not in the public comparison is left out of results.
Provider sources
Airalo
Published stored snapshot
- Snapshot reviewed 2026-09-11
Published country snapshots. An exact plan is used when the stored row covers the recommended data and the trip length. Otherwise the result is a provider page for the destination.
Ubigi
Published stored snapshot
- Snapshot reviewed 2026-09-11
Published country snapshots. A regional row stays hidden unless every selected country is in that row’s verified coverage.
Maya Mobile
Published Unlimited plans
- Manifest captured 2026-09-03
- Snapshot reviewed 2026-09-11
Published Unlimited plans. The coverage manifest and the plan constants have their own capture date. The impact snapshot has a separate review date. Unlimited plans have no price per GB.
Yesim
Published provider page
- Snapshot reviewed 2026-09-14
- Coupon checked 2026-09-22
SIMPLEESIM 15% · First purchase only 2026-09-22 Ends at 2027-09-22T00:00:00+01:00
Published stored rows. The comparison always treats them as a provider page for the destination, even when a price and a data amount are stored. They are not labeled as an exact catalog plan. The verified coupon is SIMPLEESIM.
Nomad
Published country plans
- Review date stored in code 2026-09-14
- Coupon checked 2026-10-08
SIMPLEESIM · The provider confirms the final discount at checkout. Stated date 2029-06-01, with no time or timezone.
Country plans with an exact checkout are published. Regional and global Nomad plans are not published. The date below is a review date in code. The Impact catalog manifest has no source date, so it is not a feed timestamp.
Saily
Published provider page
- Manifest captured 2026-09-03
- Coupon checked 2026-09-09
- Review date stored in code 2026-09-13
SIMPLEESIM No discount percent is stored for this coupon. · Attached when the provider confirms activation
Country pages are published from the destination manifest, with coupon SIMPLEESIM. No discount percent is stored for that coupon. Exact Saily catalog rows stay out of the public comparison unless a separate publication switch is on. That switch defaults to off, and this page does not claim the exact catalog is published.
Breeze
Public comparison is off by default
- Review date stored in code 2026-09-12
- Coupon checked 2026-10-08
SIMPLESIM 10% · All plans. No expiry date was stated.
A review date is stored in code, but the public comparison switch defaults to off. Breeze is not shown here as a published catalog.
eSIM4Travel
Not in the public comparison
- Source date stored in code 2026-07-31
Not in the public comparison. The production gate is closed. Country plans are not a live catalog, and regional names are not a verified country list. The date is the source date stored in code.
EVASIM
Published country plans
- Source date stored in code 2026-10-02
- Coupon checked 2026-10-08
SIMPLEESIMMATCH · The provider confirms the final discount at checkout.
Single-country plans from the English Awin product feed are in the public comparison when they pass validation. Regional names stay hidden unless the feed states a verified country list. Unlimited plans without a stated fair-use speed, and voice plans, stay hidden. The customer code is SIMPLEESIMMATCH. Enter it at checkout. The displayed price is the feed price.
Roamless
Not in the public comparison
- Review date stored in code 2026-09-14
Not in the public comparison. The date is a review date stored in code.
aloSIM
Not in the public comparison
- Review date stored in code 2026-09-03
Not in the public comparison. The date is the reviewed date of Offer 9.
SimOptions
Not in the public comparison
- Review date stored in code 2026-09-02
Not in the public comparison. The date is the stored verification date.
Bouygues Telecom
Not in the public comparison
No separate snapshot date is stored.
Bouygues Telecom is not in the public comparison. No separate snapshot date is stored.
Orange
Not in the public comparison
No separate snapshot date is stored.
Orange is not in the public comparison. No separate snapshot date is stored.
AirHub
Not in the public comparison
No separate snapshot date is stored.
AirHub is not in the public comparison. No documented catalog path is configured.
What happens when data is missing
If a destination is not in the reviewed information for a provider, that provider stays hidden for the trip. Changing the trip clears the previous estimate. Simple eSIM Match does not invent a plan, a price, or a rank.
Checkout stays with the provider
Payment, delivery, activation, fair use, and support happen on the provider’s website. Confirm the final price and terms there before buying. Simple eSIM Match is not the seller.
More traveller questions
These answers stay here so the home page can stay short. They are still not legal, coverage, or speed advice.
Follow the provider’s instructions. Some plans activate when installed; others start when you connect to a network or on a chosen date. Install before you travel only if the provider allows it, and confirm the activation rules on the provider’s website.
Many phones can keep a physical SIM or primary number while using a travel eSIM for data. WhatsApp is usually tied to the number you registered, not the travel eSIM. Device and app behaviour vary — check your phone and WhatsApp settings.
Not always. Many travel eSIMs are data-only. Calls, SMS, hotspot, 5G, top-up, and automatic activation are not assumed. Verify the exact plan terms on the provider’s website before you buy.
Use Multiple countries and select each country. A result is shown only when every selected country is in that option’s verified coverage. Published snapshots can include Airalo, Ubigi, Maya Mobile when every country is on Maya’s coverage list, Yesim as a provider page, and Nomad country plans. Nomad regional and global plans are not published. Saily may appear as a country page without a comparable price or data allowance. Providers that are not in the public comparison are not shown as exact package results. Confirm coverage on the provider’s site.
A price and a price per GB appear only when a verified amount and currency are recorded for that plan. A missing price is never treated as zero. Unlimited plans do not get a price per GB. A provider page is not an exact gigabyte match, because the package is chosen on the provider’s site.