OneCryption vs VaultShare

Private files and messages, encrypted on your iPhone. OneCryption is an offline encryption tool for people who prefer to exchange secret keys in person. It does not operate a message-delivery network: you choose how to send the encrypted result. HOW IT WORKS 1. Meet your contact and confirm their identity. 2. Generate shared secret key material and transfer it directly between nearby devices. 3. Write a message or select content, encrypt it locally, and share the encrypted result through a channel you choose. 4. The recipient decrypts it with the matching shared key. YOUR KEYS, YOUR CONTROL - Encrypt and decrypt text, photos, videos, audio and files. - Manage contacts and shared keys on your device. - See how much key material remains and exchange a fresh key when needed. - Use local encryption without a OneCryption messaging account. OneCryption uses a one-time-pad workflow. Key material must remain secret and must never be reused. Protect the devices and the key exchange. The channel you use to deliver encrypted content has its own privacy and metadata implications; encryption does not make a compromised device safe. FREE AND PREMIUM Text encryption is available for free. Some media and file features require Premium. Purchase options and current prices are shown in the app. If you choose a subscription, it renews automatically unless you cancel it in your App Store account settings. Privacy policy: https://www.onecryption.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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.