Erased. Overwritten. Verified.

For everyday use, often yes. For sale, repair, audits, or higher confidentiality, often no. A factory reset usually removes only the encryption key or file-index references. The actual data blocks can remain physically in storage, and sometimes in reserve areas created by wear leveling and over-provisioning.

iShredder complements a factory reset by selectively overwriting suitable storage areas. After a correctly completed process, usable data remnants should no longer be expected under realistic recovery methods.

After a correctly completed erasure process, usable data remnants should not be expected under realistic recovery or forensic workflows. Even one pass according to recognized standards makes recovery impractical for common recovery tools.

Multi-stage methods such as DoD 5220.22-M or Protectstar ASDA also make highly specialized forensic recovery significantly more difficult. The right method depends on storage type and protection needs, not only on the number of passes.

That depends on your device and use case. For occasional erasure of private files, the free Android edition may be enough. If you are selling or handing off a device, the Pro edition is a good fit. For documented erasure, internal compliance, and multi-stage methods, choose Military; for the highest protection needs, choose GOV.

The device selection section above shows you the matching edition for each platform directly.

Yes. SSDs and flash storage use wear leveling, which moves write operations across changing cells. iShredder accounts for this with SSD-aware methods such as the DoD 5220.22-M SSD variant, the 0xFF-for-SSD method, and TRIM-aware procedures where technically addressable.

For mobile flash, iShredder combines factory reset and physical overwriting. Occasional secure erasure processes are generally unproblematic for the lifespan of modern SSDs.

iOS deliberately does not allow third-party apps direct access to flash storage. That is why iShredder iOS runs on a Mac (Apple Silicon M1 through M5 or Intel) or a Windows PC. iOS devices are connected via USB and erased through the desktop application. There is therefore no standalone app in the iOS App Store.

This has one key advantage: even passcode-locked iPhones and iPads can be erased this way, provided no iCloud Activation Lock is active.

Both. You decide what should disappear: individual files and folders, free space, selected data areas, external drives, or the entire device. The scope depends on platform and edition.

A common use case is overwriting free space after you have already deleted many files. This captures remnants of earlier data that would otherwise still be recoverable.

iShredder erases locally on the device or drive. Data stored in iCloud, Google Drive, OneDrive, or other cloud services is not affected.

Before passing on a device, you should turn off cloud synchronization, sign out of your accounts, and separately delete any cloud backups you no longer need. Only then can you be sure that no copies remain outside the device.

Yes, always. iShredder erases permanently. You should export important data or transfer it to another device before the erasure process. After erasure, it can no longer be recovered—that is the purpose.

DEKRA MASA L1 stands for Mobile Application Security Assessment and evaluates mobile app security according to OWASP MASVS Level 1. It reviews areas including storage, cryptography, authentication, network communication, platform interaction, and code quality. It is an app security assessment, not an evaluation of erasure effectiveness itself.

The certification is valid for 12 months at a time and is then tested again. The Android version of iShredder was most recently revalidated in March 2026. This Android-specific assessment does not apply to iShredder on Mac and Windows.

For Android, there is a free edition with multiple erasure methods, SD card cleanup, and an erasure report. Advanced methods, external devices, and additional features are unlocked through the Pro, Military, and GOV editions. For iPhone, iPad, Mac, and Windows, iShredder starts with the Pro edition.

It is not a typical auto-renewing subscription. You purchase an edition and use it. Details about term and updates are shown in the shop for each edition.

Date and time, device identification, the algorithm used and its underlying standard, the number of erased files or overwritten areas, process duration, verification result, and a SHA-256 hash that confirms the report’s integrity.

The document can be exported as a PDF and is suitable for GDPR documentation, device handoffs, and internal compliance records. A sample report is available for viewing in the report section of this page.