A folder of your bases is what we will compare with
The result is where to save unique lines
mail: pass - in all bases, the mail will be transferred to the lower register, the separator will be replaced by ":". And only then will it compare. For example, in the new database there is a line of view arhiVAr@mail.ru;qwerty, in old arhivar@mail.ru:qwerty. Without using this function, mil arhiVAr@mail.ru;qwerty will translate into unique, using no.
Add unique to the database? - after finding unique lines, they will be added to the folder with your databases in the added_strings.txt file.
A new base can be added by dragging a text in the "New Base" field".
The path to your bases is maintained when the program restarts.