Geizhals is much older, was mostly focused on IT/electronics for many years and is thus strongest in these categories. Idealo is broader (due to its much larger

Geizhals is much older, was mostly focused on IT/electronics for many years and is thus strongest in these categories. Idealo is broader (due to its much larger team/company) but sometimes lacking detail where Geizhals is good, and vice-versa. Geizhals also covers the Austrian market better while Idealo is stronger in Germany.