G4S ZeroWire is a free app by UHS Pty Ltd available on the Android platform. It allows remote access to your security system with the same features as when accessing it locally. This includes arming and disarming the system, checking arm status, history of events, and configuring the system. The app also supports remote access to any configured cameras.

The app has the same look and feel as when accessing the system's web pages locally via a LAN connection, but with the convenience of being able to do it anywhere with an internet connection. It also supports multiple remote sites for customers with more than one system. Each site must be initially set up with a name, description, and credential information. Once set up, the main page will show the site list, and accessing each site is as simple as clicking on the site name. The app will then automatically log in to the system using the saved credentials for that site. The required credentials are usually provided by your security company representative.

Overall, G4S ZeroWire is a useful app for those who want to remotely access their security system with ease and convenience.