Costs, licensing, consumer protection Privacy, self-custody, censorship resistance

Stealf Card

Stealf · ND

3.0/5 3.8/5 · Data verified on

Stealf is a self-custody crypto payment card in beta, built on Solana's settlement layer. The model is non-custodial ('you hold the keys') with a strong privacy focus: it uses encrypted MPC compute via Arcium and private transfers via Umbra, with no on-chain link between accounts. As of 2026-06-22 the product is a virtual card distributed in beta (iOS TestFlight, Android Google Play, APK), with an official launch announced for Q1 2026 and stated availability in the USA, UK, EU and 'global'. WARNING: the card's economic parameters are undocumented. Network (Visa/Mastercard), issuance fee, annual fee, FX markup, cashback, ATM fee and limits have not yet been announced by the sources, and nothing indicates they are genuinely free. The official site now states banking and card-issuance infrastructure via Rain and wallet security via Turnkey; the KYC level and the legal issuing entity remain undisclosed.

31
Transparency: Very low
31/100 · see methodology
31
Data exposure: Minimal
31/100 · lower is better for sovereignty · methodology

Data & conditions

Network Not disclosed
Fund custody Self-custody (funds in your control)
Issuance fee Free
Annual fee Free
Free ATM limit TBA
ATM withdrawal Free
FX markup 0%
Cashback Not disclosed
Chains Solana
Contactless No
Virtual card Yes
KYC Light
Privacy 8/10
Supported countries US, UK, EEA
Estimated net annual cost €0/year
Segment B2C
MiCA / License status Nessuna licenza propria pubblica; infrastruttura bancaria/emissione carta dichiarata via Rain, sicurezza wallet via Turnkey (dichiarati sul sito ufficiale)

Strengths

  • Self-custody model: the user holds the keys to the private wallet
  • Privacy by design: MPC via Arcium and private transfers via Umbra, no on-chain link between accounts
  • Solana settlement with stated multi-region availability (USA, UK, EU)
  • Self-custody: funds stay in your wallet — the platform cannot touch them.
  • Light KYC: minimal identity verification.

Weaknesses

  • Undocumented economics: network, fees, cashback and limits not yet announced
  • Still in beta with undisclosed issuer and licensing
  • 'Fully regulated' claim not backed by verifiable public licenses
  • No notable sovereignty drawback documented.

Verdict

C A ★ 3.0/5 ★ 3.8/5 Estimated net annual cost: €0/year

Weak and unverifiable consumer protection. Stealf claims 'fully regulated' infrastructure but does not publicly disclose licenses, issuer or card network, and as of 2026-06-22 it is still in beta. With no verifiable licensing and economic parameters not yet announced, it offers the consumer no documented guarantees.

Strong on sovereignty. The model is self-custody (the user holds the keys) with privacy by design: MPC compute via Arcium and private transfers via Umbra, with no on-chain link between accounts. This is the product's strongest aspect, though still in beta.

Privacy & anonymity 30% 3.3
Fund control 20% 5.0
Censorship resistance 20% 3.0
Costs 10% 5.0

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.

Reputation

What happened to people who used Stealf Card, and what users say. External signals: they do not feed the promp.it rating.

Incidents & regulatory actions

No known incident

Search across public sources: no known hack, withdrawal freeze or regulatory action as of the verification date.

verified on

FAQ

Is Stealf custodial?

No. Stealf presents itself as a self-custody card: the user holds the keys to their private wallet and Stealf does not custody the funds.

What are the Stealf card's fees and network?

As of 2026-06-22 they are undocumented: network, issuance fee, annual fee, FX markup, cashback and ATM limits are not yet announced on either the official site or third-party sources.

Sources

Update history

✓ Terms unchanged since Jul 13, 2026

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