End-to-end encrypted
Free forever

Security
without
compromise.

Triple-layer encryption: OMEMO E2EE (Signal Protocol) + TLS 1.3 transport + optional CipherMachine AES-256-GCM on top. Mesh networks for offline communication. Your privacy is not for sale.

256bit AES encryption
17visual themes
7+plug-in modules

Everything you need.
Nothing you don't.

More than 40 features designed for privacy, productivity, and creativity.

🔐

CipherMachine

Double-layer AES-256-GCM encryption with key generation, rotation, and Canary Trap fingerprints. Works on any XMPP server — your server, ours, or a public one — only the key holder can read the message; the server only stores ciphertext.

🔒

Secret Vault

Hide chats behind multiple passwords. Each password reveals its own set of hidden conversations.

PRO

Priority Messages

Urgent ⚡, Important ⭐, and Secret 🤫 messages with visual effects and sound alerts.

🎨

Live Drawing

Draw on photos in real-time with other chat participants. Every stroke syncs instantly.

🖼️

Steganography

Hide secret messages inside ordinary photos. Only ZalAI can extract the hidden text.

🛡️

ScamShield

Three-layer scam protection: keyword analysis, AI detection, and psychological profiling.

📞

Voice & Video Calls

Crystal-clear WebRTC calls with push notifications. Works even when the app is closed.

⚠️

Duress Password

Enter a special password under threat — it silently wipes selected data while the app opens normally.

📌

Dead Drop

GPS-locked secret messages. The recipient can only read them when they physically arrive at the location.

😊

Reactions & More

20+ animated emoji reactions, polls, shared lists, pinned messages, and disappearing messages.

👤

Smart Contacts

Add via QR, NFC, phone number, or password-protected contact cards with expiration dates.

🎭

Code Phrases

Your personal dictionary of trigger phrases with hidden meanings. Only decoded locally.

🌐

Public Rooms

Discoverable directory of topic-based group chats — join in one tap, no invite needed. Hardened against ghost-room revival after admin wipes.

🌍

Any XMPP Server

Built on open XMPP. Use our hardened server, your own, or any public host — federation works like email. CipherMachine encrypts on the device, so a foreign server only ever sees ciphertext.

Built for those who
refuse to compromise.

Every message protected by military-grade encryption. Your data never leaves your device.

Your message
Meet me at the usual place at 8pm
🔑 AES-256-GCM
Encrypted
🔒 aGVsbG8gd29ybGQ=...
🔑
Key Generation
Waiting...
PBKDF2
Salt
AES Key
IV
🔐

AES-256-GCM Encryption

The same encryption used by military and intelligence agencies worldwide. 600,000 PBKDF2 iterations for key derivation.

🕵️

Canary Trap

Invisible zero-width Unicode fingerprints embedded in messages. If someone leaks your text, you'll know exactly who.

🔄

Key Rotation

Change encryption keys anytime without losing access to old messages. Seamless migration with token-based handoff.

💣

Self-Destruct

Set messages to auto-delete after reading. Timer-based destruction with secure memory wipe.

🔐

Paired Keys

Each message is locked with a unique key. Only your contact holds the matching key to decrypt it — no one else, not even the server.

🔑 Your encryption keys — complete transparency

🔒 Where is my encryption key created?
Every encryption key is generated directly on your device using a cryptographically secure random number generator. The key never leaves your phone — not during creation, not during use, not ever. Our servers never see, store, or have access to your key.
👁️‍🗨️ Can anyone read my encrypted messages?
Only the person who possesses your encryption key can decrypt and read the message. No one else — not the developers, not the server administrators, not government agencies — can read your encrypted messages under any circumstances. This is mathematically guaranteed by AES-256-GCM encryption.
📱 What happens if my account is compromised?
Even if someone gains access to your account, they cannot read your encrypted messages without the key stored on your device. The encryption key exists only on your phone — it is never transmitted to the server, so compromising the account alone is not enough to access the content of your conversations.
⚠️ What if I lose my encryption key?
This is important: if you lose your encryption key, no one in the world — including us — can recover or decrypt your messages. This is the price of true security. We strongly recommend backing up your keys securely.
🔐 How should I share my key with someone?
For maximum security, we recommend sharing keys only through secure offline channels: in person, via a USB drive, QR code scan in a face-to-face meeting, or through another trusted end-to-end encrypted service. Never send your key over unencrypted email or SMS.
👥 Can I have a separate key for each conversation?
Yes! You can create a unique encryption key for every chat. This means each conversation partner has their own separate key, adding an additional layer of compartmentalized security. If one key is ever compromised, all other conversations remain protected.
💾 Why should I back up my keys?
Since we cannot recover your keys, losing them means permanent loss of access to your encrypted message history. We recommend exporting and storing your keys in a safe place — an encrypted USB drive, a hardware security key, or a printed QR code kept in a secure location.

How ZalAI compares in security to
the world's top messengers.

Independent analysis across 17 security categories on a 10-point scale.

🥇 ZalAI
9.2 / 10
🥈 Signal
4.7
🥉 Element
4.3
4 Threema
3.8
5 Telegram
3.5
6 WhatsApp
3.2

Scored across 16 categories: E2EE, double encryption, hidden chats, duress password, steganography, canary trap, self-destruct, transport security, metadata protection, anti-scam, dead drop, code phrases, key management, local storage, anti-censorship, infrastructure resilience.

ZalAI
Signal
Element
Threema
Telegram
WhatsApp
E2EE Messaging
10
10
9
9
6
9
Double Encryption
10
2
3
2
1
1
Hidden Chats
10
3
2
3
7
1
Duress Password
10
0
0
0
0
0
Steganography
10
0
0
0
0
0
Canary Trap
10
0
0
0
0
0
Self-Destruct
9
9
9
4
8
8
Transport (TLS)
10
10
9
9
9
9
Metadata Protection
8
9
7
8
3
2
Anti-Scam (AI)
9
1
1
1
4
3
Dead Drop
10
0
0
0
0
0
Code Phrases
10
0
0
0
0
0
Key Management
9
8
8
7
4
7
Local Storage
9
8
7
8
5
5
Anti-Censorship
10
5
2
1
3
1
Infrastructure Resilience
10
4
3
2
3
2
TOTAL
9.2
4.6
4.3
3.6
3.5
3.1

🏆 Exclusive to ZalAI — no competitor has these

🔐

CipherMachine

Second layer of AES-256-GCM encryption on top of OMEMO E2EE. Even if E2EE is broken, your messages stay encrypted.

Military grade
🚨

Duress Password

Under threat? Enter a special password — it silently wipes crypto keys and selected chats. The app opens normally.

Intelligence grade
🖼️

Steganography

Hide secret text inside ordinary photos using LSB encoding. Optional AES-256 encryption. Undetectable by visual inspection.

Military grade
🕵️

Canary Trap

Invisible zero-width Unicode fingerprints in each message. If someone leaks your text, you know exactly who it was.

Counter-intelligence
📍

Dead Drop

GPS-locked encrypted messages. The recipient must be physically present at the location to decrypt and read them.

Intelligence grade
👻

Secret Vault

Multi-password hidden chats. Different passwords reveal different chats. Without the password, they simply don't exist.

Intelligence grade
🗣️

Code Phrases

Covert communication system. Pre-agreed code phrases to disguise the true meaning of your messages in plain sight.

Intelligence grade
🛡️

ScamShield AI

AI-powered scam detection analyzes incoming messages in real-time. Three-layer protection against social engineering attacks.

Innovation

When words
matter most.

Three types of priority messages for critical situations.

Hey, how are you?
14:20 ✓✓
URGENT
Server is down! Need immediate help!
14:22 ✓✓
IMPORTANT
Meeting rescheduled to 5pm tomorrow
14:25 ✓✓
🤫 SECRET
The password is "nightfall"
14:28 ✓✓

Urgent

Red pulsing glow. Sound alert. Cannot be missed. For emergencies and critical decisions.

Important

Orange highlight. Stands out in message flow. For agreements, deadlines, and reminders.

🤫

Secret

Purple tint. Indicates confidentiality. For sensitive information, "just between us."

Hidden chats.
Invisible to everyone.

Enter different passwords — see different chats. Without the password, they don't exist.

🔑

Multi-Password System

Create multiple passwords. Each unlocks its own set of hidden chats. One for work, one for personal, one for top-secret.

👻

Complete Invisibility

Hidden chats disappear from the list completely. No traces, no hints, no "hidden folder" icons.

🔐

Secure Storage

Passwords stored as SHA-256 hashes in Android Keystore / iOS Keychain. Auto-lock on app close.

No internet?
No problem.

Communicate via Bluetooth LE and Wi-Fi Direct. Create local mesh networks anywhere.

📡

Bluetooth LE Mesh

Up to 100m range, low power consumption. Devices automatically discover each other.

📶

Wi-Fi Direct

Up to 200m range with higher bandwidth. Perfect for file sharing and voice calls.

🆘

SOS Broadcast

Send emergency messages to all nearby devices in the mesh network.

🔒

E2E Encrypted

All mesh communications are encrypted with AES-256. No plaintext ever.

Your smart companion.
Always available.

Powered by OpenAI, Gemini, or Claude. Voice commands, text generation, and smart actions.

💬 Translation
Translate "meeting at 5pm" to French and German
French: Réunion à 17h
German: Treffen um 17 Uhr

Would you like me to send this to a specific chat?
Yes, send to Team Alpha group
✓ Sent to Team Alpha. Anything else?
📋 Summarize
Summarize last 50 messages in Project X chat
📌 Key points:
• Deadline moved to Friday
• Design approved by client
• 3 open bugs remaining

Want me to create a task list from this?
🎤
Voice Input
Speak naturally, AI listens and responds
🔊
Voice Output
AI reads responses aloud (TTS)
🧠
Memory
Remembers context between sessions
👤
AI Persona
Customize personality and style
Quick Actions
Compose, translate, summarize in one tap
🌐
Multi-Provider
OpenAI, Gemini, Claude, or custom endpoint

Draw together.
In real time.

Draw on photos directly in chat. Every stroke syncs to all participants instantly.

Alex● LIVE
Emma● LIVE
✏ Alex is drawing...

Express exactly how you feel.
Beyond emojis.

Long-press the compass button, drag toward an emotion, and release. The colored border around the message shows what you feel — and how strongly.

Warm ❤️ Important ⭐ Sad 💜 Cold ❄️
This project is amazing! 🚀
14:32
85% Warm
Emotion Radar — compass overlay
Color border shows emotion & intensity
Emotion Radar — colored border
Compass appears on long-press
🧭
Intuitive Gesture
Long-press + drag in any direction. Distance = intensity (0–100%).
🎨
4 Emotion Axes
Warm (orange), Important (teal), Sad (purple), Cold (gray) — each with unique color.
💬
Visual Border
A colored arc wraps around the message bubble. At 100% it forms a full circle.

Make it yours.
Plug & Play modules.

Enable only what you need. Each module adds a new world of functionality.

🆘
FREE

Safety

SOS button, safety timer, trusted contacts, fake incoming call.

17 beautiful skins.
Your style, your rules.

Nexus Dark
Nexus Light
Cyberpunk
Ocean Deep
Sunset Blaze
Midnight Aurora
ТАКТКОМ
Monochrome
Neon Future
Aurora
Nexus Pro
Pulse Dark
Flow Light
Flow Dark

Ready to take control
of your privacy?

Download ZalAI for free. No ads. No tracking. No compromises.

Open XMPP protocol · Self-hosted infrastructure · GDPR compliant (Hetzner, Germany)