There are two types of DATI phone:
The PTI smartphone or PTI phone with a built-in native application: its PTI application cannot be uninstalled, deleted or deactivated by the user. Thus, it guarantees that all lone workers always have functional protection.
Applications to be installed on the lone worker's smartphone: these applications downloadable from app stores are offered with a monthly paid subscription. They offer basic PTI functions.
At first glance, companies consider this solution to avoid extra costs and quickly protect lone workers. However, unlike a PTI phone's native application, it can be removed. It therefore does not guarantee protection that is always effective and continuous.