Signal vs Viber: Which Should You Use

Trying to decide between Signal and Viber? As someone who’s been a daily Signal user for years, I’ve tried both apps enough to share some real-world insights. Whether you’re prioritizing privacy, ease of use, or unique features, this Signal vs Viber breakdown will help you pick the right messaging app for your needs.

Understanding the Basics: Signal vs Viber

Both Signal and Viber are popular messaging apps that let you send texts, make voice/video calls, and share media. But they have some fundamental differences that can influence your choice.

Signal: The Privacy Champion

Signal is built from the ground up with privacy in mind. It’s open-source, uses end-to-end encryption by default for all messages and calls, and doesn’t store your data on servers. You can check out all the technical details and trust signals at signal.org.

• End-to-end encryption: All conversations are encrypted by default. No one, not even Signal, can read your messages.
• Minimal metadata: Signal stores almost no user data beyond your phone number and the last connection time.
• Open-source code: Anyone can audit Signal’s code to make sure there are no backdoors or security flaws.
• Disappearing messages: You can set messages and media to self-destruct after a custom time — perfect for sensitive chats.
• Screen security: Signal offers a neat feature that blocks screenshots in the app (on Android). It’s a subtle privacy boost.

As a daily user, I love how lightweight and snappy Signal feels, even on older phones. The encryption never slows down my chats, and I appreciate the peace of mind it gives me.

Viber: Feature-Rich but More Commercial

Viber, on the other hand, is more focused on a full-featured messaging and calling experience with extras like games, chat bots, and public communities. It also supports end-to-end encryption for private chats, but it’s owned by a larger corporation (Rakuten) and collects more metadata.

• End-to-end encryption: Available for one-to-one chats and group calls, but you need to verify encryption keys manually to be sure.
• Public chats and communities: Great if you want to join interest groups or follow public pages.
• Viber Out: Allows you to call non-Viber numbers at a cost — ideal if you want a Skype-like calling option.
• Stickers and games: Viber has a wide array of fun extras that Signal currently lacks.

From my experience, Viber feels a bit heavier on resources and sometimes throws in ads and promotional content, which can be annoying if you want a clean, distraction-free chat.

Signal vs Viber: Practical Differences You Should Know

Beyond features, here are some practical points that might sway your decision.

1. Privacy and Security

If privacy is your number one concern, Signal wins hands down. Signal’s open-source nature and minimal data collection give it a clear edge. Viber encrypts messages but keeps more metadata, which could be a privacy concern if you’re a stickler for data protection.

2. User Experience and Interface

Signal has a simple, clean interface. It’s easy to use but doesn’t overwhelm you with options. One minor quirk: Signal’s desktop app requires your phone to be online to work, which can be inconvenient sometimes.

Viber offers a more colorful interface and tons of extras, which can be fun but might feel cluttered if you just want straightforward messaging.

3. Group Chats and Calls

Both apps support group chats and calls, but Signal recently upped its game by allowing up to 1000 members in groups (as of mid-2023). Viber caps groups at around 250 members.

Signal’s group calling is crystal clear, but it’s purely utilitarian — no fun filters or effects like you might get on Viber.

4. Cross-Platform Support

Both apps work on iOS, Android, Windows, Mac, and Linux. Signal’s desktop app syncs your chats seamlessly (with the phone nearby), while Viber’s desktop app can work independently once you've linked devices.

Tips for New Signal Users That Aren't So Obvious

Since I use Signal every day, I’ve picked up a few tips that can make your experience smoother:

1. PIN for profile and settings backup: Signal uses a PIN to protect your profile info and settings. Don’t forget this PIN! It’s used to restore your profile if you reinstall the app or switch devices. (You can set this under Settings → Privacy → Registration Lock.)
2. Screen security toggle: On Android, you can enable “Screen Security” in Settings → Privacy to block screenshots inside Signal. It’s a subtle but handy privacy feature, especially if you share sensitive info.
3. Use disappearing messages wisely: You can set disappearing messages per chat, but remember all participants see the timer. Also, if someone screenshots before the message disappears, Signal won’t alert you — so still be cautious.
4. Link devices carefully: Signal’s desktop app requires your phone to be online. If you lose phone access, you won’t get desktop messages until you reconnect. So don’t unlink your phone unless you’re ready to switch completely.
5. Customize notifications: Signal lets you customize notifications per chat, which is a lifesaver if you’re in busy group chats or want to silence certain contacts.

One thing I noticed recently is Signal's ability to blur faces in photos before sending — useful if you want to share images while respecting others’ privacy.

Which Should You Use? My Take on Signal vs Viber

If you value privacy above all and want a fast, reliable, no-nonsense messaging app, Signal is my recommendation. It’s lean, secure, and doesn’t sell your data or pepper your chats with ads. For everyday conversations with friends and family, it’s perfect.

Viber might be better if you’re looking for a messaging app that doubles as a

在【signal官网】，我们坚信隐私保护是一项基本人权。这也是为什么我们不断努力，通过社区互动与技术创新，为您提供最安全的通讯体验。今天，我们很高兴地宣布几项重大更新，这些更新将进一步提升您的使用体验。

强大的端到端加密

与往常一样，您的所有消息、语音和视频通话都受到业界领先的开源 Signal 协议的保护。我们无法读取您的消息，其他人也无法读取。这种加密不仅限于文字，还包括您分享的图片、视频和文件。

"隐私并非可选项，它是【signal官网】运作的基础。每一条消息，每一次通话，无一例外。"

社区互动的新方式

通过听取社区的反馈，我们引入了全新的加密贴纸功能。现在您可以：

• 使用默认的生动贴纸包表达情感
• 创建并分享您自己的个性化贴纸
• 所有贴纸在传输过程中均被完全加密

加入我们，共同成长

【signal官网】是一个由用户支持的非营利组织。我们没有广告，也没有追踪器。我们的发展完全依赖于像您一样重视隐私的人们的捐赠和支持。感谢您与我们一起，为建立一个更安全的数字世界而努力。