Signal
The Astronaut's Review
Expert analysis by The Software Astronaut
Astronaut's Score
The Verdict
The privacy-focused messenger that security experts recommend.
Our Take
Signal provides end-to-end encrypted messaging with privacy as the core value. Recommended by security experts and privacy advocates.
Strong Fit
- Privacy-conscious users
- Secure communication
- Those avoiding data collection
- Security professionals
Look Elsewhere If
- Feature-rich messaging
- Business communication
- Those wanting integrations
Rating Breakdown
In-Depth Analysis
Overview
Signal is a privacy-focused messaging app providing end-to-end encrypted text, voice, and video communication.
Ease of Use
Signal is simple to use. The interface is clean. Privacy is automatic.
Key Strengths
- End-to-end encryption
- Privacy focused
- Open source
- No data collection
- Voice and video
- Trusted by experts
Limitations to Consider
- Fewer features than WhatsApp
- Smaller user base
- No business features
- Requires phone number
Pricing Analysis
Free.
Final Thoughts
Signal is the gold standard for private messaging. For features, WhatsApp is more complete. The privacy is uncompromising.
Top-Rated Alternatives
Explore other highly-rated Communication options to find the best fit for your needs.
Popular Integrations
Signal works seamlessly with these popular tools to enhance your workflow.
Note: Integration availability may vary based on your subscription plan. Visit the official Signal website or check our individual product pages for the most up-to-date integration information.
About Signal
Private encrypted messaging
Key Features
Feature Availability
| Feature | Signal |
|---|---|
Cloud-Based Accessible from any device with internet | |
Mobile App Native mobile applications available | Partial |
API Access Programmatic access for integrations | Partial |
Free Trial Try before you buy | |
Free Tier Permanently free plan available | |
24/7 Support Round-the-clock customer assistance | Partial |
SSO/SAML Enterprise single sign-on | Partial |
Data Export Export your data anytime | |
Integrations Connect with other tools | |
Custom Branding White-label capabilities | Partial |
Pricing Overview
Free and open source
Integration & API
- API Supported
- No
- API Auth Methods
- Not specified
- API Protocols
- Not specified
- Native Integrations
- Not specified
- Marketplace
- No
- Zapier
- No
Security & Compliance
- Certifications
- Not specified
- Encryption
- Signal ProtocolAES-256
- Compliance
- GDPR
- Uptime SLA
- 99.9%
Customization
- Custom Objects
- No
- Custom Fields
- No
- Custom Workflows
- No
- Custom Reports
- No
- Custom Branding
- No
- Coding Capability
- No
Mobile
- Mobile App
- Yes
- Platforms
- iOSAndroid
- Mobile Pricing
- Free
Delivery & Infrastructure
- Deployment Type
- Decentralized
- Browsers
- ChromeFirefox
- Data Centers
- Decentralized
- Languages
- 40+ languages
Pricing & Licensing
- Contract Duration
- Free
- License Mix
- No
- Trial Days
- Not specified
- Currency
- Free
Support
- Channels
- Help CenterCommunity
- Hours
- N/A
- Dedicated Manager
- No
- Training
- No