Duplicate Inspector 1.3.1 is available now

Find duplicates. Keep every scan on your device.

Name: Duplicate Inspector
Author: AMK

Scan a selected folder or, with optional permission, shared storage across your phone. Compare grouped matches and choose exactly what to keep.

Download APK View release details

Free and donation-supported Android 8.0+ No ads or account

Official Android release

Duplicate Inspector 1.3.1

Find exact duplicate photos, GIFs, videos, documents, archives, and other files, then review every selected copy before permanent deletion.

By AMK

Duplicate Inspector

Private, on-device duplicate-file review.

Version: 1.3.1 (code 5)
Compatibility: Android 8.0 or newer
APK size: 57.56 KiB
Released: 31 July 2026

Download Duplicate Inspector 1.3.1

Signed and verified release

The release APK has valid Android v2 and v3 signatures. Compare your downloaded file with the SHA-256 checksum below before installing it.

Installing the APK

Android may ask you to allow “Install unknown apps” for your browser or file manager. Download only from this official page, verify the checksum, and approve the prompt only if the app name is Duplicate Inspector.

Built for careful review

Compare each group before removing a copy.

Find exact duplicate content using SHA-256 hashes
Optionally find files with the same filename
Preview photos, GIFs, and video thumbnails
See file type, size, date, and path before deciding
Continue a user-started scan with progress notifications
Automatic Select copies preserves each suggested keeper
Manually select every file when intended, with a stronger full-group deletion warning

Verify your download

SHA-256 checksum

946C0987A1A2A79B44F1E11DE2A9BE7B9FAAD27950DCBD52510D0531D8AFA373

Universal APK for package com.amk.duplicatedetector. The app has no Internet permission.

On-device privacy

Your files and results stay on your phone.

No account, ads, analytics, tracking, or crash-reporting SDK
Folder scanning works with Android’s folder picker
Whole-phone scanning uses optional All files access
Notifications are optional and show scan progress only

Deletion safeguard

Deletion is permanent on Android.

Duplicate Inspector never deletes automatically. A file is removed only after you select it and confirm the permanent deletion warning. Automatic Select copies leaves the suggested keeper unselected, but you may manually select every file in a group. If no copy will remain, the app shows an additional warning. Deleted files cannot be restored by the app.

Read the complete app privacy policy

Inside the app

Clear controls from folder selection to final review.

Duplicate Inspector home screen with scan location and file-type options — Choose a folder or whole-phone scan and select file types.

Duplicate Inspector scan progress screen — Follow the scan phase, progress, processed count, and file.

Duplicate Inspector results with suggested keeper labels, file previews, and selection controls — Compare grouped files, suggested keepers, paths, and selection controls.

Duplicate Inspector settings for folder, storage, and notifications — Review folder, whole-phone, and notification access.

Duplicate Inspector on-device privacy information — Read the on-device processing and privacy summary in the app.

Optional Duplicate Inspector donation page — Optional support opens supportamk.com in your browser.

Duplicate Inspector warning that every file in a duplicate group is selected for permanent deletion — A stronger warning appears when your selection would leave no copy in a group.