Kosmos Hi Lo
Private Messaging and Calling
Free
Private by design. Kosmos encrypts every message, call, and file end-to-end — so no one but you and the people you choose can ever read them. Not even us.
Kosmos is a zero-knowledge messenger built so that your conversations belong to you — and only you.
Every message, call, and file is end-to-end encrypted. The encryption keys live on your devices, never on our servers, which means we can't read your messages even if we wanted to. No backdoors. No exceptions.
Why Kosmos
• End-to-end encrypted by default — Chats, calls, and shared files are encrypted before they ever leave your device. We can't read them, and neither can anyone else.
• Private communities — Build groups and spaces for your team, friends, or community, all encrypted by default.
• Everything in one private inbox — Messages, calls, and files together in a single secure place.
• No metadata mining — We don't build a profile on you. Add contacts by QR code with zero data collection.
• You hold the keys — Your identity and your conversations are yours. Recover your account with your own recovery phrase, not our servers.
Kosmos is for anyone who believes private communication should be the default, not a premium add-on. Download it and take your conversations back.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Faster, more reliable message delivery and read receipts
• Smoother private communities and group spaces
• Improved calls and file sharing
• Stability and performance improvements throughout
As always, everything stays end-to-end encrypted. Thanks for using Kosmos!
The developer, Switch168, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Switch168 Communications Corporation
- Size
- 97.2 MB
- Category
- Social Networking
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Messaging and Chat
User-Generated Content
- Copyright
- © 2026 Switch168 Communications Corp.