Keypo vs LockSeed Lite

The most secure way to backup your crypto seed phrase. This app stores one encrypted piece of your seed phrase as part of Keypo's 2-of-3 recovery system. Your share is protected by Face ID and the Secure Enclave—it never touches the cloud. Requires Keypo for Desktop to get started: keypo.io/macos WHAT IS KEYPO? Paper backups get lost. Password managers get hacked. Custodians can freeze your accounts. Keypo is a new way to recover your seed phrases that is self custody without a single point of failure. Keypo splits your seed phrase into pieces across devices you already own: your Mac, your iPhone, and your YubiKey (optional). Each piece is encrypted with the device's highest security features, the Secure Enclave, and can only be decrypted using Touch ID (on your Mac), Face ID (on your iPhone) and a PIN (on your Yubikey). Lose one device? Recover your full seed phrase with any two. Your seed phrase never touches the cloud, we never collect any personal information, and there's no single point of failure. HOW IT WORKS 1. Enter your seed phrase on your Mac using Keypo for Desktop 2. Keypo splits it into 3 pieces using Shamir's Secret Sharing 3. One piece is sent to this iPhone app, encrypted with Face ID. The other two pieces are encrypted by your Mac using Touch ID and your Yubikey using a PIN. 4. Recover anytime with any 2 of 3 devices No single piece reveals anything about your seed phrase. Even if one device is stolen, your seed phrase stays safe. WHAT THIS APP DOES • Receives and stores your encrypted share from the Keypo for Desktop app • Protects your share with Face ID authentication • Sends your share back to your Mac when you need to recover SECURITY YOU CAN TRUST • Secure Enclave encryption on Mac and iPhone • YubiKey hardware security key support • Touch ID and Face ID authentication • No cloud sync—your secrets never leave your devices • No master password to remember or lose • Shamir's Secret Sharing (2-of-3 threshold cryptography). Keypo uses Privy's Shamir secret sharing library, which is open-sourced, audited and has zero external library dependencies: https://github.com/privy-io/shamir-secret-sharing WORKS WITH ANY WALLET Keypo works with any BIP-39 seed phrase—Bitcoin, Ethereum, Solana, and thousands of other assets. If your wallet gave you 12, 18, or 24 words, Keypo can protect them. ALSO PROTECTS • Recovery codes (1Password, Authy, iCloud, etc.) • API keys and private keys • Any sensitive text up to 1,024 characters REQUIREMENTS • Mac with Touch ID running macOS 14.0 (Sonoma) or later • iPhone with Face ID running iOS 17.6 or later • Keypo iOS companion app (free): keypo.io/ios • YubiKey 5 Series (optional but recommended) SUPPORT Questions? Contact us at dave@keypo.io

LockSeed Lite - Protect Your Crypto Seeds Without Storing Them Your crypto wallet seed phrase is the master key to your digital assets. But where do you keep 12 or 24 words safely? - Paper can burn, get wet, or be found - Digital files can be hacked or leaked - Cloud storage means trusting third parties - Password managers can be breached LockSeed takes a completely different approach: YOUR REAL SEED IS NEVER STORED. Not on your device. Not on any server. Nowhere. HOW IT WORKS 1. Enter your 12 or 24-word seed phrase 2. Create a personal phrase you'll never forget (a song, poem, prayer, or any memorable text) 3. LockSeed generates a scrambled list of 26 or 52 words 4. Your real seed words are hidden among decoy words at specific positions 5. Only your personal phrase can reveal the original seed Even if someone finds your word list, they cannot extract your seed without your personal phrase. The list is useless on its own. 100% OFFLINE - ZERO DATA COLLECTION - Works completely without internet - No data sent anywhere, ever - No cloud storage or sync - No accounts, no registration, no tracking - Everything stays exclusively on YOUR device ADVANCED SECURITY - Real seed is never saved to storage - PIN protection with PBKDF2-HMAC-SHA256 (100,000 iterations) - Brute force protection with progressive delays - Sensitive data cleared from memory after use - No keyboard suggestions on sensitive fields - Session timeout with automatic lock - Clipboard auto-clear after copying addresses - Passphrase strength indicator - Face ID / Touch ID support GUIDED EXPERIENCE - Interactive onboarding tutorial on first launch - BIP39 auto-complete when typing seed words - Automatic language detection (English, Portuguese, Spanish, Hebrew) - Built-in help and manual LITE VERSION INCLUDES - Up to 2 wallets - Up to 3 crypto addresses per wallet - Full encode/decode algorithm (same as Premium) - Manage crypto addresses with QR codes - All 4 languages - All security features SUPPORTS ALL BIP39 WALLETS Works with Bitcoin, Ethereum, Solana, Polygon, BNB Chain, Tron, and any wallet that uses the BIP39 standard (2,048 words). Your seed is your responsibility. LockSeed just helps you protect it.