Seedkeeper Authenticator vs FTCOS Authenticator

Your two-factor codes should not live inside your phone. Seedkeeper PRO Authenticator turns your Seedkeeper PRO NFC card or ring into a hardware second factor. TOTP secrets and FIDO2 passkeys are generated and stored inside an EAL6+ certified secure element. They never leave the chip: no cloud backup, no copy on the device, no account to create. FEATURES • Hardware-generated 2FA codes (TOTP/HOTP), displayed with a single NFC tap • FIDO2 passkey management: list, review and delete registered credentials • FIDO PIN setup and change from the app • Add accounts by QR code scan or manual entry • Instant search across your accounts • Device information: firmware version, FIDO2 capabilities, device status • NFC settings and advanced options • Works with both Seedkeeper PRO card and ring NO CLOUD, NO ACCOUNT, NO SUBSCRIPTION No sign-up. No sync. No telemetry. The app works offline and collects no data. OPEN SOURCE App and firmware are published under a free software licence, so anyone can audit what runs inside your card. DESIGNED AND MADE IN EUROPE Built in Belgium by Satochip S.R.L. on a bank-grade secure element. REQUIREMENTS Requires a Seedkeeper PRO device (NFC card or ring) and an NFC-capable device.

FTCOS Authenticator is a hardware-backed two-factor authentication app designed for FEITIAN security keys. Unlike traditional authenticator apps that store secrets on your device, FTCOS Authenticator writes OTP secrets directly to a FEITIAN security key and reads codes over secure NFC communication — your secrets never touch your phone's storage. Key Features: • Hardware-backed security — OTP secrets are stored in the security key, not on your device • NFC communication — simply tap your FEITIAN security key to read codes • TOTP & HOTP support — compatible with most online services (6 or 8 digits) • Quick account setup — scan a QR code or paste an otpauth:// URI • Touch-to-generate — optional extra protection requiring physical key confirmation • Dark & Light theme — follows your system preference • One-tap copy — tap any code to copy it to your clipboard How It Works: 1. Add an account by scanning a service's QR code or entering the secret manually 2. Hold your FEITIAN security key near your device 3. The app reads the current OTP code directly from the key 4. Your secret remains safely stored in the hardware key at all times Requirements: • A FEITIAN security key with OATH applet support • NFC-capable device (iOS 15.6+) Privacy: FTCOS Authenticator does not collect, transmit, or store any personal data. All authentication secrets remain exclusively in your FEITIAN security key.