MobyWat has four modes and one sub-mode. The prediction mode of the program has been tested for surface (Jeszenői et al. 2015a) and interface (Jeszenői et al. 2016a) hydration. Prediction mode is accompanied by a validation sub-mode for test, scan and calibration of working parameters. Version 1.1 also includes NetDraw and Editing modes. Default program mode is prediction.