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Methodology

How every ranking is computed.

Each category is ranked on published criteria with published weights. Every score is a pure function of those inputs, the code that orders rows cannot see which links pay, and the build proves both before it ships.

rankings.json
Methodology v2026.11.1Ranking snapshot Evidence read Version published 10 November 2026

How a ranking is made, on one screen

The score

Criteria0–10, from public evidence×Published weightsper category, total 100→ChainChoice Scorereproducible
  • 20 Availability
  • 30 Published criteria
  • 10 Friction
  • 8 Trust record
  • 18 Measured data

The criteria carry 30 of 86 base weight points.

How a score is computedCriteria per category

Your setup

Country, amount, requirements→Filtersdrops providers whose terms exclude you, and names each+Pricesamount × 12 months × fee = yearly cost

It never changes the published score or order.

How availability is stated

The evidence ladder

  1. Verified820scores
  2. Attested by provider0scores
  3. Partial2scores
  4. Invalid0scores
  5. Unknown46scores

822 of 868 published scores have at least one quoted, linked source; the other 46 are provisional. Sources are re-read every 45 days.

What a score rests on
Explore the exchange ranking
Vocabulary

Five names, five things

A number on this site goes by exactly one of five names. Two are published and identical for every reader; two are computed from the reader's own answers; one is money for a stated situation. A build check fails when a surface prints a word these replaced.

The model

How a score is computed

Three stages, each published. The first is the methodology you can inspect per category below; the second and third are the constants the engine applies to every category alike.

Standing rules

Editorial principles

Evidence

What a score may rest on

A criterion is scored from a public page with a quote and a URL, read on a dated sweep. Where that receipt is missing the placement is published as needing evidence, not dressed as verified.

Claims

How availability and other claims are stated

A sentence on a product page comes from one of six places, and the page says which. Availability is the sharpest case: a provider’s own “global” tag, a region it lists, and a country a model run checked at a named source are three different things, and they are printed in three different words. Only 0 provider × country pairs counted as verified on 12 November 2026, the day this page was built; everything else is labelled as what it is.

How we compare costs

Evidence state

Four things that were one badge

Until 9 September 2026 one badge printed a rebuild notice when a receipt file failed to load, “Low” when a category had no research payload, and “High” when everything was in order — three unrelated facts in one word. They are now four named states, each derived from its own input, and a surface prints the one it means.

Category models

Category-level methodology

Every category is ranked under its own model: its criteria, weights, ladders, tie rules, evidence rules and sensitivity. Open one to inspect it row by row.

Not ranked right now

Why some categories are not ranked right now

Versions

Published methodology versions

Each version is a dated change to the model. The changelog carries the full entry; the feed names the version every score was computed under.

Verify it

Verification surfaces

Every claim above is backed by a public surface that exposes the numbers and their history.

Accountability

Who publishes this

ChainChoice is operated by Simi Ventures GmbH. These are the people behind it; the checks that run on every build are named by script on /why-trust-us.

Disclosure

Conflict-of-interest disclosure

Scrutiny

Questions