Zero Secure Messenger
Zero Secure Messenger is a secure communication app built for enterprises and organizations that require private, controlled, and encrypted communication.
The app provides end-to-end encrypted messaging, voice and video calls, and secure media sharing, designed to protect identities and sensitive data.
Key Features
End-to-end encrypted messaging
Encrypted voice and video calls
Auto-expiring messages with custom timers
Encrypted file and media transfers
Message controls: reactions, replies, edit, revoke
Privacy-preserving user identifiers and group chats
Privacy-focused design
App lockscreen with PIN or password
Secondary access PIN for added security
Encrypted internal vault for files, images, videos, and notes
Decentralized internal contact list
Safety numbers and QR verification
Stories for secure internal updates
Integration with Zero MDM on iOS
In-app content reporting and user blocking
Zero Secure Messenger is designed for managed deployments and organizational environments where privacy, security, and control are essential. Users must agree to our End User License Agreement (EULA) which prohibits objectionable content and abusive behavior.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
What's new in 1.0.7
Group Calls. Encrypted voice and video calls with up to 8 people. Already in a 1:1 call? Add anyone in your contacts and turn it into a group call instantly.
Story Indicators. A small red dot appears on a contact's avatar — in your conversation list, contacts list, and on the toolbar plus button — whenever they post a story you haven't seen yet.
Modern Composer. The message input has been completely redesigned: a floating glass pill with a morphing send button and tactile spring-press feedback.
Custom Chat Backgrounds. Set any photo from your library as the wallpaper for individual chats, with a built-in scrim that keeps text readable.
Redesigned Account & License Screens. Floating avatar above the account card, copy-to-clipboard Zero ID, status pill colored by subscription health, and a sleeker license activation screen with one-tap paste.
A Cleaner Look. Conversation list cards now match the Settings card style, so the whole app reads with a single, consistent surface.
Reliability
- VoIP push tokens refresh on every login and unregister on logout, so call notifications work correctly when switching accounts on the same device.
- Re-register Encryption Keys performs a full local session reset before uploading, fixing rare decryption failures after long offline periods.
- Account deletion now reliably wipes every trace of cryptographic material from our servers.
Plus a long list of bug fixes and stability improvements.
Version 1.0.7
The developer, Vault Management, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Vault Management
Size
43.8 MB
Category
Social Networking
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
