1. Core Positioning
Signal is a free messaging tool focused on privacy protection, supporting multi-device synchronization across mobile phones and computers. It provides global users with a secure, fast, and ad-free communication experience—no complex setup required, just one click to start encrypted conversations.
2. Core Advantages of Choosing Signal
- End-to-End Encryption: All messages and calls are protected by end-to-end encryption technology. Only you and the recipient can access the content; third parties (including the platform) cannot obtain or decrypt it, ensuring comprehensive privacy security.
- Multi-Device Seamless Sync: One account can log in to multiple devices including Android, iOS, Windows, and macOS. Chat history and contacts are synchronized in real time—you can continue conversations on your computer right where you left off on your phone.
- Encrypted Group Chats: Support for creating encrypted group chats. All messages, files, and voice notes in the group are protected by encryption, making communication with friends, family, and colleagues more secure without worrying about information leaks.
- Secure File Sharing: Freely share images, videos, documents, compressed files, and other types of files. The transmission process is encrypted, and file storage is secure with fast and stable transfer speeds.
3. Download Details by Platform
| Supported Platforms | Latest Version | App Size | System Requirements |
|---|---|---|---|
| Android | 6.25.3 | 51 MB | Android 5.0 and above |
| iOS | 6.25.0 | 32.5 MB | iOS 12.0 and above |
| Windows | 6.25.0 | 67.5 MB | Windows 8 and above |
| macOS | 6.25.0 | 73.2 MB | macOS 10.12 and above |
4. 3-Step Quick Start
- Download the compatible version: Select the corresponding version based on your device type (mobile/desktop) and complete the installation after downloading.
- Simple Registration & Login: Register with your mobile phone number, verify via SMS code, and log in quickly (no email or additional information required).
- Start Communicating Immediately: Add contacts from your address book (they need to have Signal installed) or create encrypted groups. Send messages and make calls with one click to enjoy secure communication.
5. Frequently Asked Questions (FAQs)
- Is Signal completely free?: Yes, Signal is 100% free to use with no subscription fees, ads, or hidden charges. All core features (encrypted chats, groups, file transfers, etc.) are available without restrictions.
- Is the communication process really secure?: Absolutely secure. The platform does not store user chat history, call content, or personal privacy data. End-to-end encryption ensures information is only transmitted between user devices with no leakage risks.
- Which devices support Signal?: Currently supports Android phones, iOS phones, Windows computers, and macOS computers. One account can log in to multiple devices simultaneously with real-time message sync, meeting diverse usage scenarios.