World today is driven by change, innovation and rapid progress. One of these changes is the Hejny's method, which is trying to improve maths lessons by bringing new learning techniques. In addition, thanks to its innovative approach, it is a good candidate for connecting the world of mathematics and modern technology. This bachelor's thesis aim was to create a mobile app based on the principles of Hejny's method, specifically targetting the 100s table. Students will have to gradually face basic mathematical terms, such as multiplication, series and equations. The application was successfully tested on the target audience and confirmed the set goals of intuitive and simple operation. Key words: Hejny’s method, application, Geoboards, Table 100