Encrypt anything. Share it anywhere.

AENC is an offline, end-to-end encryption app. It works as a security layer on top of the apps you already use — encrypt a message, file, photo or voice note on your phone, send it through any messenger, and only the person you chose can decrypt it.

No servers. No accounts. No tracking. Your private keys are best kept on a removable USB drive you control (keeping them on the phone is supported but less secure). Decrypted content stays in RAM and is wiped after use. AENC never sees your content — because there is nothing on our side to see.

No internet. AENC makes no network requests at all — the only exception is Google Play Billing for the optional subscription.

How it works (technical) Privacy & Terms

Real end-to-end

X25519 key agreement + AES-256-GCM, Ed25519 signatures, with an optional post-quantum mode (sntrup761). Sealed sender hides who sent it.

Removable-key

Keys are kept in an encrypted .aekey, protected by a strong passphrase (Argon2id) — best stored on a USB drive.

Truly offline

The standard build requests no network access at all. You share the encrypted package yourself, over whatever channel you like.

Nothing at rest

Photos/voice are encrypted straight from memory; decrypted content is view-only and wiped on exit. Emergency wipe for sensitive files.

Post-quantum option

Turn on a hybrid post-quantum mode (sntrup761 + X25519) so your messages stay private even against future quantum computers.

Built against forensics

AENC saves nothing in its own storage or cache. Keys stay on a removable USB and content lives only in RAM — pull the drive and a forensic tool has practically nothing to recover.

Why this matters

Governments and platforms keep expanding access to private messages. These moves miss AENC by design: the channel only ever carries ciphertext — there is no server, no plaintext in transit, and nothing at rest for anyone to reach.

“Chat Control” in the EU →

Rules to scan private messages before they are encrypted. AENC encrypts outside your messenger, so on-device scanning of that app never sees your real content.

Push-notification surveillance →

A US senator revealed governments demand push-notification metadata from Apple / Google. AENC sends no notifications and no metadata.

Messengers share data with authorities →

Telegram now hands IP addresses and phone numbers to law enforcement on request. AENC has no account and no server — there is nothing to hand over.

Every one of these attacks targets a server or the plaintext on a device. AENC exposes neither: your message becomes an opaque encrypted file the moment it leaves the app, and only your recipient can turn it back into text.

Who it's for

Journalists, activists, lawyers — anyone who wants strong, self-custodial encryption without trusting a server with their keys or their messages.