Polyguard Mobile - Call Features

Identity-verified communication for your most sensitive conversations

The Polyguard Secure Line (PSL) Mobile App transforms ordinary calls into trust-verified interactions. Available for modern iPhones, it works as a drop-in replacement for your phone app, adding military-grade identity verification to both ends of any call with another PSL user.

Recommending Polyguard to your friends, family and clients demonstrates your commitment to protecting their security as well as your own.

Built for your circle of trust:

  • With a driver's license in hand, enrollment takes less than 30 seconds. Making and receiving secure calls requires no additional steps.

  • Polyguard is the first security vendor to fuse 2D and 3D biometric processing with hardware attestation, meeting the industry's highest standards for false match rates under ISO/IEC 2382-37.

  • Unlike systems that store sensitive data in vulnerable cloud databases, Polyguard keeps biometric data encrypted on the device, never leaving your phone.

  • Automatically blocks known malicious numbers for both inbound and outbound calls, providing an additional layer of defense against evolving threats.

Key Features

Next-Gen Voice and Video calling

  • High-fidelity audio on every call

  • Easily toggle video on or off any call without redialing

Integrated with the iPhone user experience

  • Easy to invite others to join you

  • Secure Line calls show up in call history, favorites and notifications

  • Automatically promotes calls to Secure Line whenever possible

  • Respects do-not-disturb settings

  • Customizable ringtones

Call Blocking Integration

  • Protects you from scammer inbound calls

  • Protects you from malicious outbound calls (first app ever!)

  • Blocked numbers updated in real-time from FTC reporting