Karta scores 9/16, Nexo Card scores 9/16 on the CBL Card Score. Here is every criterion side by side.
| Custody | 1 of 2 | 1 of 2 |
| Issuer and licence | 1 of 2 | 2 of 2 |
| Availability | 2 of 2 | 1 of 2 |
| FX fee on a foreign-currency purchase | 1 of 2 | 0 of 2 |
| Funding cost | 0 of 2 | 1 of 2 |
| Apple Pay and Google Pay | 2 of 2 | 2 of 2 |
| Freeze and dispute policy | 2 of 2 | 1 of 2 |
| Yield on idle balance | 0 of 2 | 1 of 2 |
| Total | 9 | 9 |
The short verdict: Karta leads overall (9 to 9). Per-user Fireblocks wallet; self-custody claim unverified, 1% Visa fee on non-USD spend FX. Health: Watch. Check each profile for what still needs confirming before deciding.
| Karta | The homepage meta text claims "25% cashback on purchases", but the page body only describes earning from referred friends' spending and no rate on the cardholder's own purchases is published; the fees articles do not mention cashback (official, karta.io and help centre, checked 20 Oct 2026). |
| Nexo Card | In NEXO: Base 0.5%, Silver 0.7%, Gold 1%, Platinum 2%. In BTC: 0.1%, 0.2%, 0.3%, 0.5% (official, nexo.com/nexo-card, checked 12 Oct 2026). Credit mode only, with more than $5,000 in the account. Monthly caps of $50 to $200 reported (third-party: cardpilled). |
Cashback is shown as a dated fact and never scored.