Keycard is a hardware wallet that securely stores the private keys of your crypto. Keycard Shell is a companion device for interacting with wallet apps and signing transactions through QR codes. Check out About Keycard and Keycard Shell to learn more.
You can use Keycard without Keycard Shell, if you use your Keycard along with the Status app ↗. Keycard connects to the Status mobile app via NFC and to the Status desktop app via a USB smart card reader.
You can't use Keycard Shell without Keycard.
You can use an unlimited number of Keycards with one Keycard Shell.
You can also share one Keycard Shell device with your friends and family to use with their own Keycards, because Keycard Shell doesn't store private keys or sensitive information.
Keycard and Keycard Shell support Bitcoin (BTC), Ethereum (ETH), and ERC-20 tokens.
Your Keycard stores one master key, created from a BIP39 or SLIP39 recovery phrase. This master key can generate as many Ethereum and Bitcoin wallet addresses as you need (according to the BIP32 standard ↗).
No, you can't use your Keycard or Keycard Shell without a compatible wallet app. Wallet apps provide the interface for managing your crypto.
If you use Keycard alone, you must use the Status app. If you use Keycard and Keycard Shell together, there are a list of options such as MetaMask, Rabby, or Sparrow.
Yes, you can connect one Keycard Shell to multiple wallet apps following the same process, and use any of them as needed.
Currently, Keycard Shell can't connect directly to dApps. You need to use a compatible wallet app that supports Keycard and Keycard Shell to interact with dApps.
Keycard Shell operates in an air-gapped way, except when updating its system via USB. You can still perform the update on an offline computer. Keycard supports NFC communication and smart card readers, but when used with Keycard Shell, NFC and card readers are not required. Check out Keep your keycard and Keycard Shell air-gapped to learn how.
Lost Keycard: Your funds are safe if your Keycard PIN remains private. Use your recovery phrase to restore your wallet on a new device. For maximum security, transfer your funds to a new wallet address immediately after restoration.
Lost Keycard Shell: Your funds are secure because Keycard Shell stores no private keys or sensitive information. You can purchase a replacement Keycard Shell to use with your existing Keycard.
No. Your private keys are on Keycard's secure element chip, which prevents cloning or extraction of the keys by design.
This doesn't affect your access to your funds. You can always access your funds with your recovery phrase.
To reset your Keycard PIN, factory reset your Keycard and then import your wallet accounts again.
If you need help with your Keycard or Keycard Shell, visit the Help page for guidance.
You can also ask questions in the Keycard community on Discord.