The mobile app, Train Table, https://play.google.com/store/apps/details?id=it.mauriziulu.android.tabellonetreni does not collect o store remotely any personal data.
The user location is required only for advanced app features and it is not a mandatory needs. It is only used locally on the user smartohobne and never shared with other entities.
Older version of the app, may requires access to Google account for service validation purpose and it is never shared or stored on local o remote data bases