Secure, modern, and privacy-first mobile apps.
Yend is a new brand designing privacy-first mobile apps. From messaging to digital records, we build secure mobile apps. Every sensitive field is stored as emoji ciphertext — unreadable even inside the database — via the EPC-256 architecture.
Three core promises.
Privacy and security first
Every app starts with privacy and security by design. Data we never collect can't be stolen — we don't store anything we don't ask for. And every sensitive field we do store stays unreadable even inside the database via EPC-256 (AES-256-GCM + an emoji permutation layer).
Smart, not complex
Get started in seconds. Yend apps deliver ease of use without compromising on security.
Fast and scalable
Sub-second responses on modern infrastructure; an architecture that scales to thousands of concurrent users.
Your data stays unreadable, even if it leaks.
Yend products are built on the EPC-256 (Emoji Permutation Cipher 256) architecture. Messages, profile data and sensitive database records are NOT stored as readable text — they're stored as emoji ciphertext produced by industry-standard AES-256-GCM encryption plus a key-derived secret 256-emoji permutation layer.
This is not a simple 'visual masking'. The core is authenticated AES-256-GCM encryption; the EPC-256 layer uses a secret emoji permutation alphabet derived from the user's key that blocks statistical analysis. The same content turns into a different emoji pattern every time.
Keys are obtained via hardened derivation (PBKDF2-HMAC-SHA256) and are never stored unencrypted on any disk. No read or write is possible while the vault is locked.
Your data is stored as emoji ciphertext that's unreadable even in the database, via EPC-256 (AES-256-GCM + emoji permutation).
Learn how it works