Stay Connected Privately and Securely with Signal Messenger
Signal Messenger offers end-to-end encryption for your messages and calls, ensuring your privacy and security.
Secure and Privacy-Focused Messaging with Signal
Signal by Signal Messenger LLC stands out as a leading secure messaging app designed with user privacy at its core. Offering cross-platform compatibility, Signal enables users to exchange messages, voice calls, video chats, and media sharing — all protected by robust encryption protocols.
Top Features of Signal
- End-to-End Encryption: Signal ensures all messages, voice calls, and shared media are encrypted from sender to receiver, preventing unauthorized access.
- Secure Voice and Video Calls: High-quality calls that maintain end-to-end encryption, fostering private real-time communication.
- Group Messaging: Create and participate in encrypted group chats, supporting collaborative discussions without compromising privacy.
- Privacy Enhancements: Features like disappearing messages, read receipts, screen security, and contact verification bolster user confidentiality.
Why Choose Signal?
For those prioritizing data security and privacy, Signal offers a reliable platform that combines seamless communication with advanced security features. Its commitment to encrypting user conversations makes it an ideal choice for individuals seeking private digital interactions in an increasingly surveillance-sensitive environment.
Overview
Signal is a Open Source software in the category Communications developed by Signal Messenger LLC.
The users of our client application UpdateStar have checked Signal for updates 5,561 times during the last month.
The latest version of Signal is 7.57.0, released on 06/11/2025. It was initially added to our database on 11/04/2017. The most prevalent version is 7.55.0, which is used by 49% of all installations.
Signal runs on the following operating systems: Android/iOS/Windows/Mac. The download file has a size of 261.9MB.
Users of Signal gave it a rating of 4 out of 5 stars.
Pros
- End-to-end encryption for secure messaging
- Ability to send self-destructing messages for added privacy
- Support for voice and video calls
- Open-source software, allowing community verification of security measures
- Cross-platform support for smartphones and desktop
Cons
- Requires phone number for account creation, which may raise privacy concerns for some users
- Some users find the interface less intuitive compared to other messaging apps
- Not as widely used as other messaging apps, potentially limiting the number of contacts available on the platform
FAQ
What is Signal?
Signal is a messaging app developed by Signal Messenger LLC that provides end-to-end encryption for secure communication.
Is Signal free?
Yes, Signal is free to download and use.
What platforms is Signal available on?
Signal is available on iOS, Android, and desktop platforms (Mac, Windows, and Debian-based Linux distributions).
How does Signal ensure privacy and security?
Signal uses end-to-end encryption to ensure that messages and calls can only be seen or heard by the intended recipients. It also collects minimal user data and does not store message metadata or logs on its servers.
Does the Signal app store any of my messages or call logs?
No, Signal does not store any message metadata or call logs on its servers. All messages and calls are stored locally on your device.
Can I use Signal to make international calls?
Yes, you can use Signal to make international calls over Wi-Fi or cellular data. However, standard international calling rates may apply if you use cellular data.
Can I use Signal for group chats?
Yes, you can use Signal for group chats with up to 150 participants. Groups can be created and managed by any Signal user.
Can I use Signal for video calls?
Yes, Signal supports secure video calls for up to 8 participants.
Can I use Signal without sharing my phone number?
No, Signal requires a valid phone number to register and verify your account. However, your phone number is not shared with other users or stored on Signal's servers.
Does Signal have any known vulnerabilities?
Signal has been audited by security experts and is considered one of the most secure messaging apps available. However, like all software, it is not immune to vulnerabilities and users should always keep their app up-to-date.
Minh Ong
I'm Minh, a software engineer and author with a passion for exploring and writing about the latest in software and technology. With my experience in software development and a specialization in software updates and content creation, I bring a deep understanding of the tech landscape to my reviews and articles. My focus is on providing you with comprehensive insights into general software topics and the latest industry news.
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