Shreddit - Data Eraser5.55.260902 - Google Play

SHREDDIT is android data eraser which securely deletes files leaving them irrecoverable. This tool erases your data completely and protects falling into malicious hands. It deploys quick shredding algorithm which shreds huge data volumes PERMANENTLY in matter of seconds. The technique especially designed to work for devices internal and external storage with optimized window (buffer) sizes to shred data with efficiency and reliably. The software uses chip smartly for data shredding yielding greater time efficiency while erasing. This software has no background service and hence no overhead and perfectly safe to keep in your tool-set.

Caution:
Data erased using the shredder CANNOT be recovered by any means.

Data Shredding Standards
Shreddit implements the standards of data sanitization techniques which have been developed after decades of research. Below is the list of key data shredding standards used by the tool (we do not claim to have invented these standards; we just have implemented them in our data shredding tool for you).

- British HMG IS5 (3 pass)
- US DoD 5220.22 (3 pass)
- German VSITR (7 pass)
- Russian GOST P50739 (2 pass)
- NIST 800-88 (2 pass)
- Zero Filler
- One Filler (Secure Erase)
- Random Filler (Pseudo Random Numbers)

File Explorer Integration
Though this tool has its own light weight file explorer for providing easy access to your gallery and personal data, it also provides strong integration with your device's built in file manager (OR any third party file manager). Like for instance on ES File Explorer select one or multiple files and go to Share > Shreddit, the app will take all those files as input and shreds them.

Media Files Preview (Gallery Integration)
The app provides preview of media files to give you better insight about content you want to secure erase. You can use the app with your favorite photo manager, like with Google Photo. Just select one or multiple images/videos and send to the shredder to erase them permanently.

Known Limitations
It shreds the media file (video or image) from the gallery completely, you might see the image thumbnail in your gallery. Don’t worry all the content of the specified media file has gone, just re-scan your media to sync thumbnails with media content.

To erase external sdcard on device having KitKat (Android 4.4) or later version super user rights are required i.e. your device should be rooted.