Comparison

DeDuplicate vs Zero Duplicates

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DeDuplicate

This app scans your cloud storage for identical files and allows you to remove duplicates, freeing up valuable space. It efficiently identifies exact duplicates using file hash values without downloading your files, ensuring privacy and speed.

Highlights
  • Scans cloud storage for duplicate files
  • Removes extra copies to free up space
  • Efficient and fast scanning
  • Accurate detection using file hash values
  • Privacy-first, local processing
  • Supports multiple cloud services
Features
Currently charting
Read full description

Google Drive, OneDrive, Dropbox, and other cloud services don’t offer built-in tools to find and remove duplicates. If you store many files in the cloud, it’s easy to lose control and waste space. Automatic mobile backups make this problem even worse. DeDuplicate scans your cloud storage, finds identical files, and lets you remove the extra copies to free up space. How it works: 1) Log into your account. 2) Choose one or more folders (or the entire drive) and start the scan. Scan time depends on the NUMBER of files, not their size. 3) Review the detected duplicates and optionally ignore some of them. 4) Confirm the operation. What makes DeDuplicate different: • Efficient and fast: files are NOT downloaded. DeDuplicate uses metadata provided by cloud services, so it saves bandwidth, requires no extra storage, and scans are very quick (e.g. ~100,000 files in under 10 minutes, depending on network speed). • Accurate detection: only EXACT duplicates are detected using file hash values. File names are ignored; contents must be identical. • Privacy-first: everything runs locally on your device. The app connects directly to cloud providers, with no intermediary servers and no file data collection. • Cross-platform support. DeDuplicate currently supports the following cloud services: (PERSONAL ACCOUNTS - see notes below!) • OneDrive • Dropbox • Google Drive (∗) • MEGA • Box • pCloud • Yandex.Disk IMPORTANT: DeDuplicate is designed and tested primarily with PERSONAL/CONSUMER ACCOUNTS. Business, school, or enterprise accounts may behave differently and are not fully supported yet. Improving support for those account types is planned for a future update! NOTES ABOUT GOOGLE DRIVE: - Due to recent changes in Google’s requirements for third-party apps, DeDuplicate currently does not have a “verified” status. You can still use Google Drive normally, but signing in requires a small workaround, which is explained step by step inside the app! - Google proprietary file types (such as Google Docs, Google Sheets, etc.) are treated specially by Google Drive and are NOT included in DeDuplicate’s scan. WHY DO YOU NEED THIS APP? Until now, the only practical way to remove duplicates from cloud storage was a very time-consuming workaround: downloading everything to your computer, using one of the many “offline” duplicate-file utilities, and then syncing the changes back to the cloud. In the worst-case scenario, this even means re-uploading everything from scratch. That’s hardly a viable option when you have over 500 GB of unorganized cat pictures :) DeDuplicate is actively developed. If you encounter any issues, please take the time to contact us!

About

Zero Duplicates

Reclaim iPhone storage by finding and deleting duplicate files, even those with different names. Advanced content analysis ensures accurate identification, and a privacy-first design keeps your data local. Safely organize documents, images, videos, and more.

Highlights
  • Advanced content analysis for real duplicates
  • Finds duplicates with different filenames
  • Supports documents, images, videos, audio, and downloads
  • Scans iCloud Drive and external storage
  • Privacy-first local scanning
  • Auto-select duplicates by newest/oldest
  • Preview before deleting
Read full description

Most cleaning apps on the App Store focus on the photo library. Zero Duplicates focuses on your files: the downloads, documents, PDFs, videos and audio files that pile up in the Files app and quietly fill your storage. Zero Duplicates compares files by their content, not by their names. A renamed download, an attachment saved twice, a document copied into three folders: all of them are found, even when the file names look nothing alike. MADE FOR THE FILES ON YOUR DEVICE • Scan any folder you choose: On My iPhone, iCloud Drive, external drives • Downloads from Safari, Mail and Messages • Documents: PDF, Word, Excel, Pages, Numbers, Keynote • Images, videos, audio recordings, archives and more • USB drives and SD cards (with adapter) CONTENT MATCHING File names lie. Zero Duplicates reads the actual content of every file, so duplicates are found even when they were renamed, moved or saved from different apps. AUTO-SELECT IN SECONDS Automatic selection keeps the newest or the oldest file in every duplicate group. Review, tap once, done. No scrolling through hundreds of files by hand. SEE BEFORE YOU DELETE Every duplicate can be previewed before deletion, and you choose which copy stays. At least one version of every file always remains, so losing all copies is impossible. Deletion is permanent, so nothing is removed without a clear confirmation first. PRIVATE BY DESIGN Scanning happens entirely on your device. Your files are never uploaded anywhere. HOW IT WORKS Pick a folder, scan, review what was found, delete with confidence. Three steps to a cleaner device. System files are protected automatically. Perfect for: • Anyone seeing "Storage Almost Full" warnings • People who download and share lots of files • Managing documents, media and work files on the go • Cleaning up iCloud Drive across devices TRY WITHOUT RISK Free to download • Unlimited scans • 500 MB free deletion Premium unlocks unlimited deletion and advanced features. Terms of Use: https://zeroduplicates.com/terms

Screenshots

DeDuplicate4 screens
Zero Duplicates4 screens

Verdict

The call

The clearest difference is price: Zero Duplicates at Free against DeDuplicate's $7.99. Zero Duplicates also leads on rating (4.9 vs 4.5) and review sentiment (67% vs 48%). DeDuplicate's advantage is chart position (#191 vs unranked) and device support (4 vs 2). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Zero Duplicates is free to download; DeDuplicate costs $7.99 up front. DeDuplicate sells 2 one-off in-app purchases and Zero Duplicates sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Zero Duplicates holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 129 and 47 respectively. Written reviews point the same way: 48% of DeDuplicate's written reviews are positive against 67% of Zero Duplicates's.

UpkeepUpdate frequency

DeDuplicate ships an update every 2 weeks, Zero Duplicates weekly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

Scorecard7 real differences · 4 level
DeDuplicate versus Zero Duplicates: the parameters behind the verdict, then further details
ParameterDeDuplicateZero Duplicates
Price$7.99Free — better
Rating4.5 (129 ratings)4.9 (47 ratings) — better
Positive reviews48.0% of reviews66.7% of reviews — better
Number of ratings129 — better47
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#191 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size26 MB15 MB
Age rating4+4+
DeveloperPaolo PuglieseChristopher Brock

Customer experience

DeDuplicate

All ratings129 ratings
Positive86.8%
Neutral3.1%
Negative10.1%
Written reviews50 reviews
Positive48.0%
Neutral6.0%
Negative46.0%

Zero Duplicates

All ratings47 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

2 purchases

DeDuplicate

One-time2
  • Buy me a coffee$0.99
  • No Ads - Lifetime$7.99
3 purchases

Zero Duplicates

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Yearly Subscription$5.991 Year
One-time1
  • Lifetime$14.99

Questions

Is DeDuplicate free?
DeDuplicate costs $7.99, and also offers in-app purchases.
Is Zero Duplicates free?
Zero Duplicates is free to download, with in-app purchases available.
Which has better reviews, DeDuplicate or Zero Duplicates?
Zero Duplicates is rated higher. DeDuplicate averages 4.5 out of 5 from 129 ratings, while Zero Duplicates averages 4.9 from 47 ratings.
Do DeDuplicate or Zero Duplicates have ads?
Neither DeDuplicate nor Zero Duplicates shows ads.
Which is updated more often, DeDuplicate or Zero Duplicates?
DeDuplicate ships an update every 2 weeks, and Zero Duplicates weekly. Most recently, DeDuplicate was updated on September 21, 2026 and Zero Duplicates on September 18, 2026.

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