Tachograph File Viewer allows you to view digital tachograph files on your Android device.

Driver Card files: Summary, Activity, Vehicles Used, Places, Specific Conditions.
Vehicle Unit files: Summary, Activity, Card Insert/Withdrawal, Faults, Events.
Workshop Card files: Summary

Smart Tachograph (1C/G2) and Smart 2 Tachograph (G2v2) compatible.

A fuller version of Tachograph File Viewer is available for Windows PC.
See https://www.tachosys.com/Products/TachographFileViewer