Profiler is a free Android application developed by Tomas Chladek under the Utilities & Tools category. It provides real-time monitoring of various components in a floating window that can be customized based on the user's preferences.

The application supports monitoring of CPU load and frequency, GPU load, RAM usage, network traffic, temperature, battery voltage, temperature, and current. The data provided by the application depends on the device being used. Users can customize the layout, size, and transparency of the window to fit their needs. They can also set their preferred data format and chart color for better clarity.

Profiler also supports an API for controlling the Profiler window in the user's application. The ProfilerAPI is available on GitHub. Additionally, users who want to translate the application into their language can easily do so with the available translation resources.

Overall, Profiler is a useful tool for those who want to monitor their device's performance in real-time, and its customization options make it user-friendly.