Karta.io Card vs KAST Card
KAST Card scores higher on the G2M score: 66/100 against 40/100 (#10 and #26 of 26 cards). Pick Karta.io Card for a lower FX fee; pick KAST Card for cashback and more countries.
The short answer
- KAST Card scores higher on the G2M score: 66/100 against 40/100 (#10 and #26 of 26 cards).
- KAST Card pays 1.5% cashback on its entry tier; Karta.io Card does not publish a rate. Higher tiers go up to 3% on KAST Card.
- Neither card has an annual fee.
- Karta.io Card charges less on foreign currency: a 1% FX fee against 2%.
- KAST Card is confirmed in more countries: 2 against 0, though neither publishes a full list. Of the markets we check for every card, only KAST Card is confirmed in United States.
- Karta.io Card is self-custodial; KAST Card is custodial or self-custodial.
Want the answer for your own spending, or the next tier up of each? See what each keeps you a year or pick tiers and add a third card.
Side by side
Highlighted values are the better of the two. “Not published” means the issuer does not state it. Card data last checked 25 Oct 2026; see each card's review for its sources.
Questions
Which is better, Karta.io Card or KAST Card?
KAST Card scores higher on the G2M score: 66/100 against 40/100 (#10 and #26 of 26 cards). Pick Karta.io Card for a lower FX fee; pick KAST Card for cashback and more countries. The better card for you depends on where you live and how you spend; the G2M calculator works it out for your own spending.
Which has lower fees, Karta.io Card or KAST Card?
Neither card has an annual fee. Karta.io Card charges less on foreign currency: a 1% FX fee against 2%.
Which pays more cashback, Karta.io Card or KAST Card?
KAST Card pays 1.5% cashback on its entry tier; Karta.io Card does not publish a rate. Higher tiers go up to 3% on KAST Card.
Which works in more countries, Karta.io Card or KAST Card?
KAST Card is confirmed in more countries: 2 against 0, though neither publishes a full list. Of the markets we check for every card, only KAST Card is confirmed in United States.
Who holds my funds with Karta.io Card and KAST Card?
Karta.io Card is self-custodial; KAST Card is custodial or self-custodial.
More comparisons
Scores use the same rules for every card (how the score works). Referral links never change a score or rank. Not financial advice.

