TrustWord

Combat AI voice cloning and phone scams. Share rotating passphrases with family and friends to verify who you're really talking to.

AI can clone anyone's voice and generate convincing fake video. Scammers can spoof phone numbers. How do you know who you're really talking to?

TrustWord gives you and the people you trust a shared, rotating passphrase — unique to each relationship — that only the two of you can see. During a call, text, or video chat, simply ask for the current TrustWord to verify you're speaking with the real person.

HOW IT WORKS

1. Create a circle and invite someone by scanning QR codes
2. A unique passphrase is generated for each pair of contacts
3. Passphrases rotate automatically on your chosen schedule
4. During a call, ask "What's our TrustWord?" — only the real person will know

KEY FEATURES • Rotating Passphrases — Time-based codes that change automatically, so a stolen passphrase can't be reused • Pairwise Security — Every pair of contacts gets a unique passphrase, so compromising one relationship doesn't compromise others • Works Offline — Passphrases are generated locally using shared cryptographic keys, no internet needed to verify • Biometric Protection — Lock the app with Face ID or Touch ID • No Accounts Required — No email, no phone number, no sign-up. Just scan a QR code with someone you trust • Encrypted Backup — Sync your circles across devices with iCloud • Works for Calls, Texts & Video — Verify identity on any communication channel

TRUSTWORD PRO Upgrade to Pro for unlimited contacts. Free users can add up to 10 contacts across all circles.

TrustWord uses end-to-end cryptographic key agreement (X25519 ECDH) so that passphrases are never transmitted or stored on any server. Your security doesn't depend on trusting us.

Privacy Policy: https://trustword.app/privacy Terms of Service: https://trustword.app/terms