Cryptnox
Geneva-area card wallet with dual-card backup and MetaMask and WalletConnect support
Quick Overview
| Company | Cryptnox SA |
|---|---|
| Category | Crypto Wallets |
| Headquarters | Carouge (Geneva), Switzerland |
| Founded | Not stated |
| EU Presence | Yes - Switzerland (European, outside the EU) |
| Data Location | Newsletter software runs on the company's WordPress hosted by Infomaniak in Switzerland; wallet data location not stated |
| Open Source | Not stated on the pages we read |
| GDPR Compliant | Privacy policy names Cryptnox SA as controller |
| Self-Hosting | No |
| Main Features | Card hardware wallet, dual-card backup, biometric authentication via mobile app, MetaMask and WalletConnect support, FIDO2 and PIV cards, Shamir Secret Sharing cards |
| Pricing | Prices not shown on the pages we read; see the Cryptnox store |
| Best For | Users who want a card wallet that signs for MetaMask and WalletConnect dApps |
| Replaces | MetaMask (as the key store) |
Detailed Review
Cryptnox SA is a Swiss company at Avenue Cardinal-Mermillod 36 in Carouge (Geneva), with a commercial register UID starting CHE-432. Its privacy policy names Cryptnox SA as the controller.
The Cryptnox hardware wallet is a card. Cryptnox states that private keys sit inside the card's secure element, and that a second card created in dual mode acts as the backup without a seed phrase.
How does the Cryptnox card wallet connect to dApps?
Cryptnox states that its hardware wallet integrates with MetaMask, WalletConnect and Web3 apps, so users can store, swap and use DeFi. The site also offers an online tool to sign a message with WalletConnect.
That makes Cryptnox a signer that sits behind MetaMask or other dApp wallets rather than a replacement for the browser extension.
How does Cryptnox back up keys?
Cryptnox sells a dual set where the backup card is created in the same initialisation process. The company describes this as backup without a seed phrase.
Biometric authentication is added through the mobile app, and PIN and PUK management are covered in the tutorials.
What else does Cryptnox sell?
Beyond the wallet, Cryptnox lists FIDO2, PIV and MIFARE cards, card readers and Shamir Secret Sharing cards. A business line covers card scheme infrastructure and custom development.
Cryptnox states that it ships from within Switzerland, the EU and the US without import duties and also sells through Amazon stores.
Limitations to Consider
The pages we read show no prices and no full list of supported coins, so costs and coverage need a check on the Cryptnox store. The Cryptnox Wallet mobile app has its own terms of service that we did not read. Open-source status is not stated. Compare NGRAVE for another Europe-made option that integrates with MetaMask.
Who Should Use Cryptnox
DeFi users who want a thin card signer behind MetaMask and WalletConnect.
Pros and Cons
Pros
- Swiss company with a UID and a Geneva-area address
- Dual-card backup without a seed phrase
- MetaMask and WalletConnect support stated
- Biometric pairing through the app
- Ships from CH, EU and US without import duties
Cons
- No prices on the pages we read
- Coin list not read
- Mobile app terms not read
- Open-source status not stated
Alternatives to Cryptnox
Other European crypto wallets worth comparing before you decide:
See all European crypto wallets or compare them directly against MetaMask (as the key store) on our alternatives page.
Frequently Asked Questions
Cryptnox SA is a Swiss company at Avenue Cardinal-Mermillod 36 in Carouge, Geneva, and is the named data controller in its privacy policy.
Cryptnox states that its hardware wallet integrates with MetaMask, WalletConnect and Web3 apps.
Cryptnox SA says it does not request, collect or store seed phrases, recovery phrases, private keys, PINs or PUKs.