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

Foundation Passport Passport Core

A plan byFoundation Passport

4.4/5 5.0/5 · Data verified on

Foundation Passport is a Bitcoin-only, fully air-gapped hardware wallet: both hardware and firmware are entirely open-source (FOSS), and the device communicates with the outside world only via QR codes and a microSD card, with no USB data connection (the USB-C port is power-only). The entry Passport Core (≈€183, $199) uses a Microchip ATECC608a secure element; the newer Passport Prime (≈€377) adds a colour screen, FIDO/2FA, a secrets vault and QuantumLink Bluetooth connectivity, remaining open-source but no longer purely air-gapped. The official companion app is Envoy.

Passport Core

Price
€183

What's included

  • Bitcoin-only
  • Air-gapped (QR + microSD)
  • ATECC608a secure element
  • Open-source hardware and firmware
  • Envoy app
Self-custody
Custody
Open-source
Source code
1+
Chains
€183
Price
61
Transparency: Medium
61/100 · see methodology
61
Data exposure: Medium
61/100 · lower is better for sovereignty · methodology

Data & conditions

Fund custody Self-custody (funds in your control)
Type Hardware (cold storage)
Source code Open-source
Recovery Seed phrase 12/24 parole (BIP-39)
Bitcoin-only Yes
Supported chains Bitcoin
Price €183
Secure element Yes
Air-gapped Yes
Connectivity QR, microSD, USB-C
Companion app Envoy
Built-in swap No
Built-in staking No
Built-in fiat on-ramp No
Segment B2C
MiCA / License status Nessuna (hardware wallet self-custody)

Strengths

  • Fully open-source hardware and firmware (FOSS); Passport Core is 100% air-gapped (QR + microSD only); ATECC608a secure element; Bitcoin-only reduces attack surface.
  • Self-custody: funds stay in your wallet — the platform cannot touch them.
  • No KYC: usable without identity verification.
  • Open-source, verifiable code.
  • Self-hostable: you can run your own instance or node.

Weaknesses

  • Bitcoin-only (no other assets); higher price than entry-level competitors; the Passport Prime adds Bluetooth and is therefore no longer purely air-gapped.
  • No notable sovereignty drawback documented.

Verdict

A S ★ 4.4/5 ★ 5.0/5

Score 4.4/5, very strong profile. In its favour: fully open-source hardware and firmware (FOSS); Passport Core is 100% air-gapped (QR + microSD only); ATECC608a secure element; Bitcoin-only reduces attack surface. The trade-off to weigh: bitcoin-only (no other assets); higher price than entry-level competitors; the Passport Prime adds Bluetooth and is therefore no longer purely air-gapped.

On the Sovereignty lens the score is 5.0/5 (outstanding): the strength is privacy & anonymity (5.0/5), while censorship resistance (4.8/5) is the weak link.

Privacy & anonymity 30% 5.0
Fund control 20% 5.0
Censorship resistance 20% 4.8
Trustless / auditability 20% 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.

FAQ

How much does the Foundation Passport cost?

The entry Passport Core costs about €183 ($199). The newer Passport Prime, with a colour screen and FIDO/2FA features, costs about €377.

Is the Foundation Passport really open-source?

Yes: both the hardware and the firmware are fully open-source (FOSS), one reason it is favoured by the more code-verification-conscious Bitcoin community.

Does it support cryptocurrencies other than Bitcoin?

No. The Passport is a Bitcoin-only device: it does not handle Ethereum, altcoins or tokens. This choice reduces complexity and attack surface.

Sources

Update history

✓ Terms unchanged since Jun 20, 2026

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