On 15 May, the German Information Technology Association (Bitkom) recently conducted a survey showing that 31 APP was installed per person. Today, one or more smart mobile phones have been installed, with scores of APP each being installed to meet life, communication, recreation and work requirements. The survey showed that the average number of applications used was quite high, reaching 31. Twenty per cent of users’ mobile phones APP number no more than 20. Only 8 per cent of users use less ...