Statistics for all recorded tracks
Basically in GPX Viewer PRO there are two approaches to see statistics for all of your recorded tracks:
Always export recorded tracks into gpx or kml files
To see statistics for all of your recorded tracks, please open all gpx files which contains your recorded tracks, then open tab Opened in track/route list screen, then tap on “…” button in top right corner and then tap on Statistics. In File browser, when you tap on “…” button in top right corner you can also enable option Don't close opened files so when you open new gpx file it won't close other opened gpx files.
Do not export recorded tracks into gpx or kml files at all
By default GPX Viewer PRO is providing you options to export recorded track into gpx or kml file after stopping track recording. You can cancel this process, so track won't be exported and it will remain in recorded tracks in GPX Viewer PRO. But be aware, when you uninstall GPX Viewer PRO you will loose all of these recorded tracks. However you can at anytime export your tracks in Recorded tab in track/route list screen, when you tap on “…” button in top right corner and then tap on Export, also you can see statistics for all of your recorded tracks by tapping on Statistics.
This automatic export settings can be adjusted when you open left main menu in main map screen, then tap on Settings, then Track recording there are two options at the bottom: Automatically export tracks (After stopping track recording automatically show dialog with track exporting options) and Automatically delete tracks after export (Delete all recorded tracks after exporting them).