What apps are commonly used by Germans?

The German Federal Republic (German: Bundesrepublik Deutschland), referred to as Germany (referred to as West Germany or Federal Germany before the reunification of the two Germanys), is a federal parliamentary republic in Central Europe. It borders Denmark, the Netherlands, Belgium, Luxembourg and France to the west, Switzerland and Austria to the south, and the Czech Republic and Poland to the east. The country consists of 16 federal states, with Berlin as its capital, and a territory of 357,167 square kilometers. It has a temperate climate. Mainland, with a population of about 81.1 million people[1], is the most populous country in the European Union[2], with Germans as the main ethnic group.