Communication
Encrypted messaging and calls with post-quantum cryptography. Our infrastructure cannot reconstruct who communicates with whom.
What it does
Secure communication designed for a hostile digital world.
QuantumChat is a messaging and calling application focused on advanced security and device protection, built for users who cannot afford digital risks.
Post-Quantum Encryption
Maximum Privacy
Maximum Privacy iOS + Android No centralized repository
QuantumChat
What is QuantumChat?
QuantumChat is a post-quantum encrypted messaging and calling application built for users and organizations that require advanced communication security. Unlike conventional messaging apps, QuantumChat stores no messages on central servers, requires no phone number or email, and includes features designed for high-sensitivity environments: Phantom Chat for ephemeral conversations that leave no trace, an encrypted local Vault for private file storage, Annihilator mode for silent device wipe, and Remote Deletion triggered by a trusted contact. The 12-month plan includes Zimperium Mobile Threat Defense for device-level threat monitoring.
01Post-Quantum Encryption
02Maximum Privacy
03Device Protection
Why this matters
The chat you were waiting for
QuantumChat combines real post-quantum cryptography, with the ML-KEM-1024 and ML-DSA-65 standards that NIST published as FIPS 203 and FIPS 204, and an intuitive interface designed for people who take their digital security seriously.
01Post-Quantum Encryption 02Maximum Privacy 03Device Protection
QuantumChat
Built for secure communication
Security
Device-level protection against malware, zero-click exploits, and system-level threats through Zimperium MTD.
Privacy
No email required. No phone number required. Minimal data collection. Privacy-first design.
What it does
How QuantumChat works
QuantumChat combines secure communication with device-level protection to reduce real-world digital risks.
Advanced encryption
Messages are encrypted with post-quantum algorithms before leaving your device. Only the recipient can decrypt.
Security-first architecture
Temporary storage until the message reaches its recipient, and impossible to decrypt for anyone but them. Our infrastructure cannot reconstruct who communicates with whom.
Controlled communication
You decide who can contact you. Block unknown senders, manage contacts, control your digital boundaries.
Device threat protection
Zimperium Mobile Threat Defense actively monitors and protects against device-level attacks and vulnerabilities.
Advanced features for maximum security and privacy
Advanced security features
QuantumChat is designed for people who take privacy seriously. Messages and calls are protected by a security-first architecture, with no centralized message repository and optional device-level protection.
Phantom Chat
An ephemeral conversation mode where the chat only exists while both participants are connected. When either one leaves, the conversation is instantly and permanently destroyed on both devices: no history and no copy to recover.
Annihilator Mode
A silent emergency wipe triggered by a special code at the login screen. From the outside it looks like a normal login, but all local data - messages, vault, notes - is completely erased without leaving any visual indication.
Remote Deletion
A trusted contact can remotely trigger the erasure of your QuantumChat data using a pre-configured key. The order stays pending and runs the next time the app opens. It does not reach copies someone may already have made outside the application.
Encrypted Vault
A fully local encrypted storage for sensitive files, images, videos, documents, notes, and a private calendar. No cloud sync, no server backup - accessible only from within QuantumChat.
QuantumChat
The chat you were waiting for
QuantumChat combines real post-quantum cryptography, with the ML-KEM-1024 and ML-DSA-65 standards that NIST published as FIPS 203 and FIPS 204, and an intuitive interface designed for people who take their digital security seriously.
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Feedback from professionals and users who value secure communication.
Trusted by security-conscious users
I've followed the QuantumChat project closely and it feels genuinely promising. In a digital environment where most apps depend on user data, it's refreshing to see a communication tool designed with privacy and security as a priority.
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QuantumChat
How to get QuantumChat
Secure communication designed for a modern digital environment.
Physical cards
Available through authorized distributors
Online access
Purchase subscriptions directly through our secure platform
1 month 3 months 6 months 12 months + Zimperium
View subscriptions Device-Level Protection
Device protection powered by Zimperium
With the annual QuantumChat subscription, Zimperium Mobile Threat Defense adds an additional security layer focused on the device itself, complementing QuantumChat's secure communication features.
- Malware
- Zero-click exploits
- Malicious applications
- System-level threats
Monitoring • Detection • Response
Beyond the conversation
ZoneAlarm by Check Point
Coming soonYour digital world deserves another layer of protection.
QuantumChat protects your conversations. ZoneAlarm by Check Point extends the offering to your device: browsing, networks, apps and files. Complementary areas of security, a broader perspective.
ZoneAlarm Mobile Security
Protection for iOS and Android against fraudulent links, risky Wi-Fi networks and other mobile threats.
ZoneAlarm Extreme Security NextGen
Multi-device protection for computers and mobile devices, with features that vary by operating system.
Mobile Security
Browsing and links
Anti-phishing protection and checks of links and QR codes before visiting risky sites.
Mobile Security
Wi-Fi networks
Detection of unsafe connections and interception threats on wireless networks.
Mobile Security
Apps and device
Risky configuration alerts. Malicious app detection is available on Android.
Extreme Security NextGen
Antivirus and firewall
Malware scanning and control of inbound and outbound traffic on Windows.
Extreme Security NextGen
Ransomware defence
Detection of file-hijacking behaviour and recovery features, depending on platform.
Extreme Security NextGen
Documents and downloads
Isolated analysis of suspicious files and removal of dangerous content from supported documents.
A different approach to secure communication
What makes QuantumChat different
QuantumChat
- Post-quantum encryption
- No personal data required
- Temporary storage, only until delivery
- Device-level threat protection
- No reconstruction of who talks to whom
Traditional apps
- Standard encryption methods
- Email or phone required
- Cloud message storage
- App-level security only
Explore QuantumChat
Your world. Your conversations. Your space.
Communication
Encrypted messaging and calls with post-quantum cryptography. Our infrastructure cannot reconstruct who communicates with whom.
Encrypted Vault
A fully local encrypted storage for sensitive files, images, videos, documents, notes, and a private calendar. No cloud sync, no server backup - accessible only from within QuantumChat.
Privacy
No email required. No phone number required. Minimal data collection. Privacy-first design.
FAQ
Frequently Asked Questions
QuantumChat is a secure messaging and calling app with post-quantum encryption, Phantom Chat, Vault, and device-level protection. Built for users who cannot afford digital risks.
01What is QuantumChat?+
QuantumChat is a secure messaging and calling application with post-quantum encryption designed for users who cannot afford digital risks. It includes Phantom Chat (ephemeral conversations), an encrypted local Vault, Annihilator mode, Remote Deletion, and optional Zimperium device threat defense. No phone number or email is required to use it.
02Does QuantumChat use post-quantum encryption?+
Yes. QuantumChat uses post-quantum cryptographic algorithms to encrypt messages before they leave your device. This means communications are designed to resist both current and future threats, including attacks from quantum computers.
03Does QuantumChat require a phone number or email?+
No. QuantumChat does not require a phone number or email address. Access is granted through a subscription code, and you register only with a username and passcode. This is a core privacy design principle.
04What is Phantom Chat in QuantumChat?+
Phantom Chat is an ephemeral conversation mode in QuantumChat where messages exist only while both participants are actively in the session. When the session ends, the entire conversation is destroyed with no history saved, no backend storage, and no persistent data of any kind.
05What is the Annihilator mode?+
Annihilator is a security feature in QuantumChat that allows users to silently wipe all local data from the device by entering a special code at the login screen. It appears as a normal login but performs a complete local wipe including messages, vault, notes, and all app data - without any visible indication that a wipe occurred.
06How does Remote Deletion work in QuantumChat?+
Remote Deletion allows a user to designate a trusted contact who can remotely wipe their QuantumChat data. If the trusted contact sends the correct deletion key, the target device is flagged and the next time the app opens, all local data is automatically wiped without leaving any visual trace.
07How much does QuantumChat cost?+
QuantumChat subscriptions start at €35 for 1 month, €90 for 3 months, €175 for 6 months, and €350 for 12 months. The annual plan includes Zimperium Mobile Threat Defense for device-level security. There is no auto-renewal.
08Is QuantumChat available on iOS and Android?+
iOS + Android. Coming soon to the stores. Let me know when you launch.