Armour Mobile vs Zivver Secure Email Gateway: Side-by-Side Comparison (2026)

Armour Mobile: Secure mobile comms platform for defence, approved to NATO Restricted/OFFICIAL SENSITIVE. built by Armour Communications. Core capabilities include End-to-end encryption of data in-transit and at rest, Secure messaging and voice calls on iOS, Android, and Windows 10, Approved for OFFICIAL SENSITIVE and NATO Restricted classifications..

Zivver Secure Email Gateway: Secure email gateway with automated DLP and zero-knowledge encryption. built by Zivver. Core capabilities include Automated sensitive data detection in outbound emails, Zero-knowledge encryption for all outgoing emails, Rule-based security policy enforcement..

Both serve the Secure Collaboration & Messaging market but differ in approach, feature depth, and target audience.

Armour Mobile differentiates with End-to-end encryption of data in-transit and at rest, Secure messaging and voice calls on iOS, Android, and Windows 10, Approved for OFFICIAL SENSITIVE and NATO Restricted classifications. Zivver Secure Email Gateway differentiates with Automated sensitive data detection in outbound emails, Zero-knowledge encryption for all outgoing emails, Rule-based security policy enforcement.

Armour Mobile is developed by Armour Communications. Zivver Secure Email Gateway is developed by Zivver. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Armour Mobile integrates with Skype for Business, Windows Desktop phones. Zivver Secure Email Gateway integrates with Microsoft 365, Outlook, Gmail. Check integration compatibility with your existing security stack before deciding.

Armour Mobile and Zivver Secure Email Gateway serve similar Secure Collaboration & Messaging use cases: both cover Encryption. Review the feature comparison above to determine which fits your requirements.