With the Duplicate Photos cleaner(click from a smarphone) feature, you can remove duplicate photos from your gallery to free up storage. To access this feature, open dfndr security and follow the steps below:
1- Tap on Tools tab and select Duplicate Photos (click from a smarphone).
2- Wait while dfndr security scans your phone for duplicates.
3- The app will then show you all the duplicate photos and suggest one of them to delete. You can always uncheck any images that you do not want to delete.
4- To delete, tap on “Delete pictures”.
5- Read the confirmation messages and Confirm.