📷 Keystone review: security, features and score
84/100SCORE · BTrustedHardware, keys on device
Grade B, very good
Air gapped signing with a wallet you already use, on many chains.
The facts
- DEVELOPER
- Keystone
- LAUNCHED
- 2019
- TYPE
- Hardware, air gapped
- CUSTODY MODEL
- Hardware, keys on device
- KEY MODEL
- 12 or 24 word seed on device, fingerprint unlock, air gapped by design
- CHAINS
- Bitcoin, Ethereum, Solana, Cosmos and most majors
- PLATFORMS
- QR code signing with MetaMask, Rabby, Solflare, Sparrow, BlueWallet
- OPEN SOURCE
- Full
- AUDITS
- Open source firmware, secure element
- HARDWARE SUPPORT
- Is the hardware
- SWAP COST
- None built in.
What it can do
How the score breaks down
Each dimension is explained on the methodology page.
Where it is strong and where it is not
✓ Strengths
- Fully air gapped over QR codes, with no cable, Bluetooth or USB
- Large touchscreen makes verifying an address realistic
- Open source firmware
- Works inside MetaMask, Rabby and Solflare
✗ Weaknesses
- QR workflow is slower than plugging in
- Smaller ecosystem than Ledger
- Battery to keep charged
Incident history
No security breach or significant incident on record.
The whole point is that no data channel exists other than the camera. Read the address on the device screen every time.
Reputation and reviews
A reputation score out of 100, kept separate from the feature score above. It reflects what users actually report over time rather than a star rating scraped on one day.
REPUTATION
84/100
Growing fast among people who want air gapped signing without Coldcard's difficulty. The large screen and QR workflow are frequently praised.
Check current reviews yourself
Star ratings change constantly, so we link to the sources rather than printing a number that is out of date the day after it is written.
If something goes wrong
COMMON FIXES
Transaction stuck pendingYour transaction has sat as Pending for minutes or hours and nothing is moving.Transaction failed but the gas was still takenThe transaction reverted, you got nothing, and the fee left your wallet anyway.Token is not showing in my walletThe block explorer shows the tokens arrived, but the wallet shows nothing.I sent tokens to the wrong networkYou withdrew to your address but picked the wrong chain, and the balance is not where you expected.
RISK WARNING
Crypto assets are highly volatile and largely unregulated. You can lose everything you put in.
Nothing on this page is financial, investment or tax advice, and nothing here is a recommendation
to buy or sell any asset. Do your own research and never commit money you cannot afford to lose.