Methodology
Fynn is designed to show why a card ranks well, what assumptions drive the estimate, and where uncertainty remains.
Ranking inputs
We score cards against spend categories, stated goals, fee tolerance, credit-score band, existing wallet signals, foreign-travel needs, and likely use of credits or perks.
Expected usable value
Values are estimates, not guarantees. We combine projected rewards, likely welcome-bonus completion, realistic credit usage, perks, annual fees, and foreign transaction costs.
Approval context
Approval estimates are broad bands based on card tier and profile signals. They are not prequalification, underwriting, or a guarantee of approval.
Affiliate separation
Affiliate links may generate compensation, but affiliate payout is not used as a ranking input. The engine ranks by user fit and expected utility.
Important credit disclosure
Using Fynn's quiz does not pull your credit. Applying with an issuer may result in a hard inquiry and can affect your credit score. Offers, terms, and approval outcomes are controlled by issuers.