Three percent of people in Europe use maps on their mobile phone
According to the report, the majority of users – 73% in the United States and 57% in Europe – accessed mobile maps via the handset’s browser. Less than a third of customers in these markets used a downloaded application.
Source In a town like Lausanne it would make sense to use google maps paired with the phone’s gps because there’s municipal wifi you don’t need to agree to for use.