: Quickly synchronize user data and access levels across all connected devices. Advanced Linkage
Stick with zkaccess 5.3 if you have 50+ legacy controllers and do not want a monthly recurring fee. Upgrade to ZKBioSecurity if you need visitor pre-registration and facial recognition with live monitoring. zkaccess 5.3
While robust for standalone sites, ZKAccess 5.3 has specific trade-offs: : Quickly synchronize user data and access levels