The startup Plombier4.0 in Valenciennes in Hauts de France, created in 2018, attends and becomes Hommar. An evolution that marks our willingness to accompany industrial companies and training centers in bringing a new outlook and a breath of fresh air in the field of increase reality technologies 4.0 (RA, IA). It brings its expertise in augmented reality by means of the following products : -Cognitives and actives ludopedagogies learning apps - The Augmented Print - Advice and support - Awareness-raising activities