The functionality provided by this app is far better than the one provided by a dash cam. Some features are:
1. Clean and user friendly interface.
2. User can schedule when to clean old files.
3. The option to auto loop or record once is also provided.
4. The app has smartness to detect low memory condition and stop recording.
5. The app can also detect low battery and stop recording.
6. View your recorded files in a clean interface.
7. Files can be locked for later viewing and will not be deleted.
8. User has the option to manually delete/unlock files.
9. If you want to mute sound no problem that is provided.
...and many more.