Keystone starts at $99/mo; MetaMask is free. MetaMask is rated higher at 4.3/5 vs Keystone's NaN/5.


Keystone uniquely offers True air-gapped signing via QR code only (no USB/BT/WiFi/NFC), 4-inch color touchscreen for clear transaction review, Fully open-source firmware with reproducible builds. MetaMask uniquely offers Ethereum Wallet Management, Browser Extension Support, Mobile App Availability. Both share 0 features.
Independent analysis based on features, pricing, and user ratings
Keystone starts at $99/mo; MetaMask is free.