Z-OS, the world’s smallest SIM OS: Workz’ secure Operating System is the foundation of our SIM products.  It runs SIM applications and hosts secure network authentication that enables their deployment.  The modularity of Z-OS provides the smallest OS footprint on the market today with it being approximately 40% smaller than other SIM OS.  This optimization gives greater opportunity to add more Value Added Services and revenue generating services to your SIM.


To guarantee the highest security, reliability, and performance, Workz has developed the Z-OS in conjunction with a team of experienced European software engineers.  The platform was designed to enable a broad range of features with secure and reliable Over-The-Air management of applications.


Compatibility and compliance

Z-OS provides interoperability and is compliant with all leading international SIM standards:


To learn more about Workz Z-OS contact us today.