Sesam - Secure

What you write becomes unreadable. What you store never leaves the device. And the app doesn't look like what it is. UNREADABLE MESSAGES Write, encrypt, send it through whatever you already use — SMS, email, any messenger. What travels is meaningless, including to whoever carries it. Keys are exchanged in person, by QR code. Never over the internet. A VAULT FOR EVERYTHING ELSE Photos, videos, documents, notes. Encrypted on the device with a key that never leaves it. No contact needed: the vault works on its own, from the first minute. A FAÇADE. A CODE. Sesam opens as a calculator, a weather app, a notepad, a game — around fifteen façades, with the real icon and the real interface. Your code reveals the vault. A second code opens a decoy one, filled with ordinary conversations, in case someone forces your hand. WHEN IT GETS SERIOUS Travel mode: before a border, the key leaves the device. Your files stay, unreadable, indistinguishable from noise. Access log: you know who tried to open it, and when — with their photo, if you want. Emergency wipe: everything goes, for good. 24 WORDS TO GET IT ALL BACK Your key never leaves the device. A 24-word phrase, written on paper, restores it elsewhere — and nothing else can. UNDER THE HOOD • AES-256-GCM then XChaCha20-Poly1305: two layers, two keys • Argon2id, 64 MB of memory — beyond OWASP recommendations • No server, no account, no collection, no network permission • iPhone, Mac and Apple Watch ——— Sesam Premium — monthly or yearly auto-renewable subscription. The price is shown in the app before any purchase, in your country's currency. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel it at any time in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://omnixapps.com/en/applications/sesam/