Stemax is a free Android application developed by StelsNPP LLC that enables clients of security companies to remotely manage their properties, receive alerts about security events, and monitor equipment status. It should be noted that the app requires the Stemax alarm control panel version 5.3 or higher to function correctly.

The app has several features, including the ability to view all properties in one place with the option to drill down to specific sections, display the status of each property and alarms with sound alerts and priority settings, and manage the security mode of each section. Additionally, the app has an event log with sorting and filtering options, the ability to specify who performed specific actions on the property, and authorization via fingerprint. Finally, users can control outputs of the OK system and search for objects in the "Objects " tab.