Secure Communication Built for Privacy
GSTNet encrypts your messages, calls and files on your device before they are sent, so we cannot read them. Calls connect directly device-to-device when networks allow. Available for Windows, iPhone and iPad.
✓ 90 days of introductory access · No credit card required
Why Peer-to-Peer Changes the Architecture
Many communication services can read the messages that pass through their servers. GSTNet is designed so we don't have the keys to decrypt your messages, calls or files, even though our servers deliver them.
Peer-to-Peer First Architecture
Calls use direct encrypted connections between devices (WebRTC) whenever possible. When a direct connection is not possible, an encrypted relay carries the call. Messages and files are delivered through our servers in encrypted form.
AES-256-GCM Encryption
Communication content is encrypted before it leaves your device. Global Space Technology does not possess the cryptographic keys required to decrypt protected content.
Global by Design
The Windows app is available in 19 languages, the iPhone and iPad app in English, Persian and Japanese, and the website menus in 34 languages. Built to serve users worldwide.
Real-Time Message Translation
On iPhone and iPad, incoming messages can be translated automatically using Apple's on-device translation, in about 20 languages. Translation happens on your device after decryption, and the original text is always one tap away.
Multi-Protocol Connectivity
Wi-Fi and cellular connectivity today, with satellite and RF transport layers on our future roadmap — see our roadmap section for what's live now versus planned.
Your Identity, Your Control
Your GST-ID is a unique account identifier — not your password, and not proof of account ownership on its own. No phone number or real name is required to register.
Forward Secrecy
Each session generates new encryption keys, so a compromise of one session's key does not expose other sessions.
How It Works
Get secure in four simple steps. No technical knowledge required.
Register
Create your free account in the iPhone or iPad app, or on our website. You receive a unique GST-ID — your account identifier on GSTNet.
Download
Get GSTNet from the App Store on iPhone and iPad, or download the Windows app from our website.
Connect
Enter your contact's GST-ID to establish an encrypted connection, using a direct peer-to-peer path whenever possible.
Communicate
Text, voice, video, and file transfer — all end-to-end encrypted.
What GSTNet Is Designed to Provide
A clear picture of what's live today.
| Capability | GSTNet |
|---|---|
| End-to-end encrypted communication | ✓ |
| Peer-to-peer-first connectivity | ✓ |
| No phone number required for GST-ID | ✓ |
| Server-side account management | ✓ |
| Security and abuse-prevention controls | ✓ |
| Secure relay when direct connection unavailable | ✓ |
| On-device message translation (iPhone and iPad) | ✓ |
| 90-day introductory access | ✓ |
| No sale of personal information | ✓ |
Built For Every Mission-Critical Need
Individuals
Privacy-conscious users who want true security without giving up features. Journalists, activists, and anyone who values their digital freedom.
View PlansEnterprise
Secure internal communications for companies that cannot risk data breaches. Trade secrets and confidential negotiations stay private.
Learn MoreGovernment
Diplomatic communications, inter-agency coordination, and end-to-end encrypted briefings.
Learn MoreBuilding The Future of Secure Communication
A multi-phase expansion from desktop to global mesh network.
View Full RoadmapPhase 1 — Windows App
Encrypted messaging, voice and video calls, and file transfer. AES-256-GCM encryption. 90 days of introductory access.
Phase 2 — iPhone & iPad
Encrypted messaging, voice, video and group calls, file transfer, push notifications and on-device message translation. Android is in development.
Phase 3 — Enterprise & Government
Multi-seat licensing, admin controls, compliance tools, dedicated support.
Phase 4 — Satellite & RF Mesh
Communication without internet infrastructure. Battlefield-ready, disaster-resilient global mesh network.
Ready to Communicate Without Compromise?
Start with 90 days of introductory access. No credit card. No commitment.