By now (since Nov 2016 ), Panoramio is defunct and it was 50% of the application data sources (other was wiki) https://www.panoramio.com/ https://en.wikipedia.org/wiki/Panoramio . It was available since Nov 2016 under the google play key pl.tpolgrabia.urbanexplorer and taken down on March 2018 by Google due to inactivity (not updating information about the application).