Timeguard Supplymaster is a free Android app developed by Timeguard under the Utilities & Tools category. It is designed to provide convenient and easy programming of immersion heater or lighting from your phone or tablet. With this app, users can make changes to programs from any location, which can save them money by canceling unwanted programs during periods of unexpected absence.

Supplymaster features four operating modes: Auto, Permanent off, Permanent on, and Holiday, along with advanced and boost functions. It can be used with Timeguard FSTWiFi and FSTWiFiTGV WiFi controlled fused connection units. This app is an ideal solution for those who want to control their immersion heater or lighting remotely and efficiently.