Solidarity
Privacy-first business card sharing that puts you in control. Share your contact information securely without compromising your privacy or relying on cloud services.
What is Solidarity?
Solidarity is a mobile app that lets you create, share, and manage digital business cards with advanced privacy controls. Unlike traditional networking apps, everything works offline and your data never leaves your device.
Key Benefits
🔒 Complete Privacy Control
- Three privacy levels: Public, Professional, and Personal
- Share only what’s needed for each situation
- No tracking or data collection - everything stays on your device
🌐 Works Anywhere
- No internet required for sharing contacts
- Peer-to-peer technology connects devices directly
- QR codes work even when devices can’t connect
🎭 Anonymous Verification
- Prove group membership without revealing your identity
- Zero-knowledge proofs verify credentials cryptographically
- No central authority needed for verification
⚡ Instant & Seamless
- One-tap sharing via QR codes or device-to-device
- Apple Wallet integration for quick access
- Automatic organization of received contacts
Perfect For
Networking Events - Share professional info quickly and securely
Business Meetings - Exchange verified credentials without oversharing
Social Gatherings - Control what personal information you reveal
Group Verification - Prove membership in organizations anonymously
How It Works
- Create your digital business card with different privacy levels
- Choose what to share based on the situation (public/professional/personal)
- Share instantly via QR code, device-to-device, or Apple Wallet
- Verify group membership using zero-knowledge proofs when needed
Get Started
Ready to take control of your networking privacy?
- Usage Guide - Learn how to use Solidarity effectively
- Architecture - Explore technical architecture and features
- Contributing - Build and contribute to the app
Solidarity: Networking without compromise.
title: Introduction description: Privacy-first business card sharing with zero-knowledge proofs
Solidarity
Privacy-first business card sharing that puts you in control. Share your contact information securely without compromising your privacy or relying on cloud services.
What is Solidarity?
Solidarity is a mobile app that lets you create, share, and manage digital business cards with advanced privacy controls. Unlike traditional networking apps, everything works offline and your data never leaves your device.
Key Benefits
🔒 Complete Privacy Control
- Three privacy levels: Public, Professional, and Personal
- Share only what’s needed for each situation
- No tracking or data collection - everything stays on your device
🌐 Works Anywhere
- No internet required for sharing contacts
- Peer-to-peer technology connects devices directly
- QR codes work even when devices can’t connect
🎭 Anonymous Verification
- Prove group membership without revealing your identity
- Zero-knowledge proofs verify credentials cryptographically
- No central authority needed for verification
⚡ Instant & Seamless
- One-tap sharing via QR codes or device-to-device
- Apple Wallet integration for quick access
- Automatic organization of received contacts
Perfect For
Networking Events - Share professional info quickly and securely
Business Meetings - Exchange verified credentials without oversharing
Social Gatherings - Control what personal information you reveal
Group Verification - Prove membership in organizations anonymously
How It Works
- Create your digital business card with different privacy levels
- Choose what to share based on the situation (public/professional/personal)
- Share instantly via QR code, device-to-device, or Apple Wallet
- Verify group membership using zero-knowledge proofs when needed
Get Started
Ready to take control of your networking privacy?
- Usage Guide - Learn how to use Solidarity effectively
- Architecture - Explore technical architecture and features
- Contributing - Build and contribute to the app
Solidarity: Networking without compromise.