Data Eraser - iShredder

Protectstar Inc.

In-app purchases

About this app

iShredder™ – secure data eraser & file shredder for Android
Protect your personal and work data before you sell, trade in, repair, recycle or hand over your phone. iShredder securely overwrites photos, files, folders and empty space, making later recovery extremely difficult even with recovery apps or forensic tools.

WHY NORMAL DELETE ISN’T ENOUGH
Deleting a file on Android often removes its reference without immediately overwriting the storage area it occupied. Depending on the device, Android version and storage technology, residual data may remain. iShredder targets selected content and empty space for secure overwriting instead of merely removing files from view.

CERTIFIED, MILITARY-GRADE ERASURE
iShredder supports recognized methods such as DoD 5220.22-M, NIST SP 800-88, BSI TL-03423 and other international standards. Choose a quick one-pass wipe for routine tasks or a stricter multi-pass process for particularly sensitive information.

The Android app has been independently assessed and awarded DEKRA MASA L1 security certification under OWASP MASVS Level 1 requirements. iShredder also received the Fortress Cybersecurity Award 2025 for its data-erasure technology and app security.

WHAT YOU CAN WIPE
• Photos, videos and personal media
• Documents, downloads, files and complete folders
• App traces, hidden caches, logs, temporary files and thumbnails
• Empty space in internal storage and supported SD cards
• Work data on corporate, BYOD and shared devices

KEY FEATURES
• Selective secure erase
Choose exactly which files, folders or storage areas should be overwritten.

• Multiple certified algorithms
Choose the right balance of speed and protection.

• Built-in file explorer
Locate private content and select it directly for secure shredding.

• Erasure reports
Create a record for device handover, audits and privacy workflows. Reports depend on the edition.

• BYOD & user changes
Remove work data before return, repair, reassignment, resale or employee offboarding.

COMMON USE CASES
• Wipe an Android phone before sale, trade-in, buy-back or recycling
• Remove private photos, documents and downloads before repair
• Reduce remnants after uninstalling apps by wiping empty space
• Clean corporate and BYOD devices during device or staff changes
• Document repeatable disposal and handover procedures with reports

HOW THE WIPE WORKS
1. Select files, folders, app traces, empty space or a storage area.
2. Choose the erasure algorithm suited to your security needs.
3. Start the wipe — iShredder overwrites the selected areas and, where available, generates an erasure report.

FOR BUSINESS, IT & PRIVACY OPERATIONS
Certified methods and reports help organizations manage device rotation, returns, reuse, onboarding/offboarding and internal security procedures. They can support documented data-disposal and GDPR-aligned privacy workflows when combined with your organization’s compliance requirements.

ADVANCED OPTIONS WHEN YOU NEED MORE
Depending on the edition, iShredder provides additional deletion algorithms, extended reports and professional options for power users, businesses and public-sector teams. Use iShredder for regular privacy maintenance, shared devices and repeatable IT processes.

PRIVACY & SECURITY BY DESIGN
Connections to Protectstar services use modern TLS encryption. The app avoids unnecessary data collection and, as stated in Google Play’s Data Safety section, does not share user data with third parties.

Note: Features, algorithms and reports can vary by device, Android version and iShredder edition.

With iShredder, “deleted” really means securely erased.

Ratings and reviews

I have bought the lifetime upgrade to the highest level, I don't remember if it is military or professional. regardless, it will randomly tell me that I need to pay to upgrade. I would uninstall the app, and reinstall it, and it would have everything unlocked the way it is supposed to since I paid. however, it always immediately has a 1.1 MB update available, and if I do it, it deregisters the app. after uninstalling and reinstalling 10+ times, I realize if I Skip updating it, it will work

This works well, but there are more negatives than positives. I love 25 different ways to shred your files! Unfortunately only 5 are free, the rest u have to pay. Oftentimes u don't know which is which until u click on it and it tells u "upgrade required" to use that feature. Always choose FILE EXPLORER to pick files to shred, then go to INTERNAL STORAGE or SD CARD, then PICTURES (or whatever), & pick the ones starting w/ "trashed" in the name. Those are your deleted files. Too complicated!

It appears to clean files, caches, free space, or what items you select. It gives detailed reports. It appears to work well. The free version prompted me that I could only wipe a set amount of data per day. Though it doesn't restrict the amounts of free space you can wipe. That was a surprise. I wish it had an ability to examine some of the wiped areas for reassurance that it's doing the job. But with that, the app seems to work well. Thank you for the app iShredder!! I read some of the other reviews: The app freezes up? Sometimes the percentage completed stays at zero and elapsed timer is working. Chill! It will finish and give you a report! The photos you deleted only to find the photos still present? Those digger apps will find thumbnails in various clipboards and image caches. The error is likely your oversight. Look at the file size. Do some research!!

What’s new

+ Adjustments for Android 16
+ Adjustments for tablets

Thank you for using iShredder and being part of the Protectstar community!