Opens all types of KOMPAS-3D files (parts, assemblies, drawings, and specifications) and common formats like DXF and DWG . Where to download:
Simple, lightweight versions are available on the Google Play Store and often come pre-installed in the "Tools" folder of many Android phones.
The official Russian app store lists KOMPAS:24 with thousands of installations.
If you simply need a compass for hiking or finding North, Android has several top-tier options that use your phone's built-in magnetic sensor.