Secure Communication Systems Competitors

Rakuten Viber is one of the most trusted and downloaded apps in the world. We create meaningful connections, bringing people together safely, so they can enjoy precious moments with their families and friends, manage their business relations, or pursue their passions, in one place - we do it all! As a super app, we give our users services that cover every aspect of their day-to-day needs and make their lives easier. Rakuten Viber is part of Rakuten Group, Inc., a global technology leader in e-commerce, fintech, digital content, and communications services. Join Rakuten Viber today and enjoy the world’s best communication experience.

Wire is a secure messenger and collaboration platform built for organizations that cannot afford leaks, exposure, or loss of control. We help governments, critical infrastructure, and enterprises replace insecure messaging, reduce shadow IT, and take back control of their communications. It brings together messaging, voice, video, and file sharing in one workspace, protected by strong, always on end to end encryption. ❌ The reality today Most collaboration tools were not designed for security. They expose data, create dependency on non sovereign providers, and leave gaps in compliance. ✅ What Wire does differently – End to end encryption is always on across messages, calls, and files – No one can access your data, not even Wire – Flexible deployment across EU cloud, private cloud, on prem, or air gapped environments – Encryption based on the Messaging Layer Security standard, built to scale without friction Unlike traditional tools, Wire is built so that security does not depend on trust in the provider. It removes data access, reduces sovereignty risk, and gives organizations full control over their communications. ➡️ Where it matters most – Crisis and incident communication – Confidential workflows across legal, executive, and security teams – Frontline and cross organization coordination without consumer apps ✅ The result Secure, sovereign collaboration your teams can actually use without compromise. Book a demo and see how Wire fits into your security and IT environment and replaces insecure communication tools.

Signal is a nonprofit end-to-end encrypted communications app, driven by the mission to protect free expression and enable secure global communication through open source privacy technology. Privacy isn’t an optional mode — it’s just the way that Signal works. Every message, every call, every time. End-to-end encryption powered by the open source Signal Protocol keeps your conversations secure. Signal can't read your messages or listen to your calls, and no one else can either. We combine state-of-the-art security with the features that users expect in a modern messaging application. That’s why millions of people trust us every single day, all over the world. Signal is built by a lean, remote-first team who keeps privacy at the core of everything we do. Learn more about what it’s like to work at Signal and see open positions at https://signal.org/workworkwork and support our work by going to signal.org/donate