Keystone offers 2 tiers for different team sizes.
With 12 features including 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, Dual secure element (Keystone 3 Pro) for chip-level defense, Keystone provides solid value. Rated N/A/5 since 2018.
Keystone has paid plans: Keystone Essential at $99/one-time, Keystone 3 Pro at $169/one-time, plus no enterprise tier.
No, Keystone does not offer a free plan, but may offer a free trial.
Keystone offers 12 features including 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. With a N/A/5 rating, most users find good value.
Yes! Ledger (from $79/mo), Trezor (from $79/mo), SafePal (from $29.99/mo) offer lower starting prices.