InqScribe does have a Auto Save Backup feature (you can turn this on or off and adjust the frequency of the backups under “Edit > Options...” in Windows and “InqScribe > Preferences...” on Mac).
After a crash, auto-backups should open the next time you launch InqScribe. If they don’t, you can track down the files manually in the following locations:
Of course, the best remedy is to ALWAYS SAVE OFTEN!!