Cypher Card

The rating collapses for one reason only: the product ceases to exist. Active cards are cancelled on 7 August 2026 and the platform goes offline on 6 September, so there is nothing left to sign up for, and the only sensible action for anyone holding a balance is to withdraw it by that date. This is not, however, a judgement on conduct: the exit was announced almost two months in advance, as part of an acquisition by Nium, and the company states withdrawals are fee-free — the opposite of the no-KYC cards in this same category that vanish along with their domain. The historical limits remain: no licence or regulator disclosed and a Visa issuer never made public.

Cypher was one of the few genuinely non-custodial cards in the category, multi-chain across 15+ blockchains: funds stayed under the user's control, and that is exactly what makes the shutdown less dramatic than it would have been for a custodial card. The lesson is the one this registry keeps repeating: self-custody protects your money even when the provider leaves the stage. A real time constraint remains, though — access runs through the app and the dApp, which go offline on 6 September 2026: anyone who does not withdraw by then has a problem, self-custody or not. Before the shutdown it was in any case worth noting that KYC was full, so anonymity was limited.

Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.

"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.