CryptoDuck vs VaultShare

CryptoDuck helps you and your friends create a secret language only insiders can read. Type a message, pick an encryption rule, and get ciphertext in one tap. Share it anywhere - only those who know the rule can decode it. Perfect for couples, close friends, and fun group chats. [Core Features] - Encrypt and decrypt text with custom rules - Build your own cipher: letters, numbers, emoji - mix freely - Rule management: create, edit, import, export, and share via Deep Link - Share as plain text, file, or beautiful ciphertext card (Pro: no watermark) - History: auto-save sessions with one-tap refill (Pro) - Rule Store: couple packs, emoji ciphers, gaming codes and more [System Extensions] - Home Screen Widget: see your active rule, jump straight to encrypt or decrypt - Shortcuts: encrypt or decrypt without opening the app, results copied to clipboard (Pro) - iCloud sync: keep rules across your devices (Pro) [Privacy First] - Plaintext, ciphertext, and rules stay on your device by default - No ads, no third-party analytics, no cross-app tracking - Optional iCloud sync is handled by Apple [Free vs Pro] Free: 3 manual rules, 12 total, 500 chars per encryption Pro: unlimited rules, no char limit, history, iCloud sync, watermark-free cards, Widget, Shortcuts and all paid rule packs [Important Notice] CryptoDuck uses custom character mapping - not AES or military-grade cryptography. Do not use for highly sensitive data. Ideal for fun secret messaging between people who share a rule. Download CryptoDuck and start your secret conversation. [Auto-Renewable Pro Subscription] 1. Subscription: Continuous (Monthly/Yearly) Pro Membership 2. Duration: One month or one year. Pro features are available during the active subscription period. 3. Price: Monthly and Yearly plans available (actual price shown on the App Store purchase sheet). 4. Payment: Charged to your Apple ID account upon confirmation of purchase. 5. Cancellation: To cancel auto-renewal, turn it off at least 24 hours before the current period ends in Settings > Apple ID > Subscriptions. Otherwise, the subscription renews automatically. 6. Renewal: Your Apple ID account will be charged within 24 hours before the period ends. Upon successful payment, the subscription extends for one more period (1 month or 1 year). 7. Privacy Policy: https://baitemi.com/jmy/privacy.html 8. Subscription Terms: https://baitemi.com/jmy/subscription.html

VaultShare sends your files and messages straight to another device over an end-to-end encrypted, peer-to-peer connection. Your data travels directly between the two devices and is never uploaded to or stored on any server. No accounts. No cloud. No tracking. Just open the app, pair with a short code or a QR scan, and share. HOW IT WORKS 1. One device taps "Generate Secret Room" to get a 6-digit code (e.g. 529-194) and a QR code. 2. The other device enters the code — or scans the QR — to join. 3. Both screens show a security verification code. Confirm they match to rule out a man-in-the-middle; transfers stay locked until both sides verify. 4. Pick your files and they stream directly to the other device, each chunk encrypted and checksum-verified on arrival. You can also chat securely over the same connection. REAL END-TO-END ENCRYPTION • ECDH (P-256) key exchange with HKDF-SHA256 to derive a shared session key • AES-GCM-256 authenticated encryption on every file chunk and message • SHA-256 integrity check on every received file • A human-comparable security code to defeat man-in-the-middle attacks • Keys are generated and held only on your two devices — we never see them PEER-TO-PEER, NOT THE CLOUD Files and chat move over a direct WebRTC connection between the two devices. A lightweight signaling server only helps the devices find each other; it never receives your file contents, messages, or keys. There is no storage server holding your data. PRIVATE BY DESIGN • No sign-up, no login, no profile • No analytics, advertising, or tracking • No personal data collected • The camera is used only to scan room QR codes — nothing is recorded SECURE CHAT Send end-to-end encrypted messages to your peer over the same private channel. WORKS WITH THE WEB APP VaultShare uses the same protocol as the VaultShare web client, so you can share phone-to-phone or phone-to-browser, in either direction. Note: VaultShare connects two devices through a signaling server to establish the peer-to-peer link. On some restrictive networks a relay (TURN) may be used to complete the connection; it only ever forwards already-encrypted data. Your files stay yours.