RT ToolBox is a free Android application developed by Łukasz Sieczkowski, designed to simplify the process of calculating exposure times for industrial isotopes used in Radiography Testing for Non-Destructive Testing (NDT). This app is an essential tool for RT operators as it allows you to store and monitor source decay for isotopes like Iridium-192, Selinium-75, Cobalt-60, and Ytterbium-169.

One of the standout features of RT ToolBox is the integrated timer and isotope bunker, which allows for quick and easy exposure time calculations. This feature minimizes the risk of human error and ensures accurate exposure times, increasing the safety and efficiency of the NDT process. Overall, RT ToolBox is an excellent utility tool for NDT operators and is compatible with Android 5.0 and above.