sentences:  Additional tools based on GuiXT are offered by Synactive GmbH (InputAssistant, GuiXT Controls, GuiXT Script Editor Pro) and by Synactive, Inc., a US firm headquartered in Foster City, California (GuiXT Designer, Liquid UI).Synactive GmbH was founded in 1998 by Dr. Gerhard Rodé.Synactive Inc. was founded in 1998 by Thomas Ewe.