Which is best: Discover it Cash Back, Chase Freedom Flex, Citi Double Cash® Card?

Citi Double Cash® Card wins the most everyday categories outright (9 of 11) once each printed rate is valued in real cents per dollar. It is not automatically the right pick — Discover it Cash Back costs nothing a year against $0 — but it is the one that earns most across the board.

How do you compare these three fairly?

Every category is scored as the printed earn rate multiplied by our conservative value for the currency it pays, giving real cents back per dollar. That stops a large multiplier in a low-value currency from looking better than a smaller one in a high-value currency. Issuer-portal-only rates are excluded from the headline math, and no ranking has any access to which cards pay us a commission.

Three-way comparisons → Discover it Cash Back vs Chase Freedom Flex vs Citi Double Cash® Card

Discover it Cash Back vs Chase Freedom Flex vs Citi Double Cash® Card

All three side by side, every category valued in real cents per dollar — the printed rate times our conservative value for the points it pays, which is the same math the Credit Upside engine runs on every charge. Card data verified 2026-08-21.

Category	Discover it Cash Back	Chase Freedom Flex	Citi Double Cash® Card
Dining	1.0¢/$ (1x)	3.0¢/$ (3%)	2.0¢/$ (2%)
Groceries	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Gas	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Travel	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Flights	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Hotels	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Streaming	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Transit	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Online retail	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Issuer travel portal portal only	1.0¢/$ (1x)	5.0¢/$ (5%)	5.0¢/$ (5%)
Drugstores	1.0¢/$ (1x)	3.0¢/$ (3%)	2.0¢/$ (2%)
Everything else	1.0¢/$ (1x)	1.0¢/$ (1%)	2.0¢/$ (2%)
Annual fee	None	None	None
Statement credits (max/yr)	—	—	—
Foreign transaction fee	None	3%	3%
Rewards currency	Discover cash back	cash back	cash back
Signup bonus	—	20,000 after $500/3mo	—
Offer last confirmed	—	2026-09-14	—

Citi Double Cash® Card wins the most everyday categories outright (9 of 11), but that is only half the question. It is also the cheapest of the three at no annual fee. Which of the three earns you more still depends entirely on where your money actually goes.

Cents per dollar = printed earn rate × our conservative point value. A big multiplier in a cheap currency loses to a small one in an expensive currency, which is exactly why we never rank on the raw number. The issuer-travel-portal row is shown for reference but excluded from the verdict — it only pays if you book through that issuer's own site, which is a condition, not a category. The same goes for a rate that only pays at one brand (14x at Hilton, 8x on United fares): it is printed under the card's flat rate, labelled, and never counted. Caps, rotating categories and credits you forget to use change the real answer — the app applies all of them to your actual statement.

Prefer them two at a time?

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