RGB Master is a free Android app developed by TriCon that allows users to monitor and control LED Strips and other RGB devices via Bluetooth and Arduino (UNO). The app is categorized under Lifestyle and is designed to work with Linvor, HC 0x, and other devices easily.

The app provides a simple 4-wire connection (e.g. DUPONT mw) to the ARDUINO (UNO) and the wiring diagram can be found in the video linked in the app. However, it must be noted that the app is not suitable for those who think they can control a normal LED-Stripe without any additional hardware.

Overall, RGB Master is a useful app for those who want to monitor and control their LED Strips and other RGB devices. It is user-friendly and easy to navigate. However, it is important to have the necessary hardware to use the app effectively.