Wire
Wire is a secure collaboration platform from Switzerland that combines messaging, voice, and video calling. It offers true end-to-end encryption across multiple devices simultaneously, making it ideal for both personal use and professional teams.
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About
Wire differentiates itself from other secure messengers by focusing heavily on a modern, crisp user interface and robust collaboration features. Launched by former Skype technologists, it brings high-quality audio and video capabilities to the encrypted messaging space. While many secure apps focus strictly on text, Wire is built for rich media and teamwork, supporting group video calls, file sharing, and screen sharing with end-to-end encryption.
A key advantage of Wire is its multi-device capability. Unlike some encrypted messengers that struggle to sync history across devices, Wire works seamlessly on mobile, desktop, and tablets simultaneously. Your message history is always available, securely synced, no matter which device you pick up. This makes it a strong competitor not just to WhatsApp, but also to workplace tools like Slack or Microsoft Teams.
Security-wise, Wire uses the Proteus protocol for text and messaging (based on the Signal protocol) and WebRTC for voice and video calls. Everything is end-to-end encrypted by default. The company is based in Switzerland and complies with European data protection laws. The code for the Wire client is open-source, allowing for transparency and community audits.
Wire operates on a freemium model. It is free for personal use, which includes most standard messaging features. For organizations, "Wire for Enterprise" offers added administrative controls, better user management, and compliance features, positioning it as a secure alternative for business communication.