Security-hardened Android OS - install it yourself
Open Source
E2E Encrypted
Zero Knowledge
CalyxOS
Privacy-focused Android with better app compatibility
Open Source
E2E Encrypted
Zero Knowledge
No Logs
Free
OS is free. Requires Pixel or Fairphone ($400-800).
Quick Specs
| Open Source | ✓ Yes View code |
|---|---|
| E2E Encrypted | ✓ Yes |
| Zero Knowledge | ✓ Yes |
| Self-Hostable | ✗ No |
| No Logs Policy | ✓ Yes |
| Audited | ✗ No |
| Jurisdiction | United States |
| Pricing | Free |
About CalyxOS
De-Googled Android from the Calyx Institute nonprofit. Balances privacy with usability - includes microG for better app compatibility than GrapheneOS.
Best For
Users needing balance between privacy and mainstream app compatibility
Security Considerations
A tool is only as effective as its implementation. Consider these factors:
- Configuration matters: Default settings may not match your threat model. Review security options carefully.
- Training is essential: Tools protect nothing if your team doesn't use them correctly or consistently.
- Integration points: Consider how this tool connects with your existing systems and what data flows between them.
- Continuity planning: Ensure you have backup access methods and know the recovery process.
Need help implementing this securely? Take our free assessment or book a discovery call.
Other Mobile Phones Options
Pre-configured secure smartphone with GrapheneOS
Open Source
E2E Encrypted
Zero Knowledge