Comparison

Zero Duplicates vs Storage & Contacts Cleaner

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

Head to head
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

About

Storage & Contacts Cleaner

Features
Read full description

Running out of storage? Tired of scrolling through thousands of photos or dealing with duplicate contacts? Storage & Contacts Cleaner helps you take control of your device, find what’s taking up space, and organize your digital life in just a few taps. Scan photos, discover duplicate files, clean up your contacts, and find unnecessary junk. Everything happens directly on your device, giving you a simple and secure way to reclaim space without the hassle. DUPLICATE & SIMILAR PHOTO CLEANER Your gallery deserves a fresh start. Scan photos to find exact duplicates, similar images, and burst shots that look almost identical. Review smart suggestions and keep the best-quality photo while removing unnecessary copies. Enjoy a cleaner gallery without losing your favorite memories. BLURRY PHOTO DETECTOR Some photos are worth keeping. Others are just taking up space. Find blurry and out-of-focus images with a smart scan that ranks photos from blurriest to sharpest. Quickly review unwanted shots and make room for new memories. SCREENSHOTS & LARGE VIDEO FINDER Forgotten screenshots and oversized videos can quietly fill your storage. Find old screenshots, identify the largest videos, and review files that are taking up valuable space. Decide what to keep and what to remove. LARGE FILE FINDER Discover what's using your storage. Scan accessible folders to identify large files and understand where your space is going. Find storage-heavy items faster, without digging through folders one by one. DUPLICATE CONTACTS CLEANER Keep your address book organized. Scan contacts to identify duplicate entries and merge them with ease. Smart suggestions help preserve the most complete contact information, including names, phone numbers, and photos, so your contact list stays clean and consistent. CONTACT COMPLETENESS SCORE A better address book starts with complete information. See which contacts are missing a name, photo, or phone number. Identify incomplete entries at a glance and improve your contact list with simple fixes. CACHE CLEANUP Unnecessary files can build up over time. Review available cleanup options and remove unwanted items to free space on your device. STORAGE SCORE How healthy is your storage? Get a clear overview with a simple Storage Score. See what needs attention and discover suggested actions to improve your storage situation. One convenient place to understand your device and make smarter cleanup decisions. SPEAKER CLEANER Having trouble with muffled or quiet sound? Try Speaker Cleaner to help clear water and unwanted residue from your speaker using sound-based cleaning vibrations. A simple tool to try when your speaker needs a little extra attention. YOUR DATA STAYS YOURS Your privacy matters. All scans are performed directly on your device. Your personal photos and contacts are not uploaded to our servers or shared with third parties through the scanning process. Privacy Policy: https://policy-6ef9d.web.app/ Terms of Use: https://terms-345fd.web.app/

Screenshots

Zero Duplicates4 screens
Storage & Contacts Cleaner4 screens

Verdict

The call

Zero Duplicates and Storage & Contacts Cleaner are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Zero Duplicates sells 3 in-app purchases, starting at $4.99 per month and Storage & Contacts Cleaner sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Zero Duplicates ships an update weekly, Storage & Contacts Cleaner every 2 weeks. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

ScorecardNo meaningful differences
Zero Duplicates versus Storage & Contacts Cleaner: the parameters behind the verdict, then further details
ParameterZero DuplicatesStorage & Contacts Cleaner
PriceFreeFree
Rating4.8 (65 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings65 — better—
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.6
Further details — not scored
Size20 MB1 MB
Age rating4+4+
DeveloperChristopher BrockLarysa Koltsova

In-app purchases

3 purchases

Zero Duplicates

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$7.991 Year
One-time1
  • Lifetime$14.99
2 purchases

Storage & Contacts Cleaner

Subscriptions2
  • Unlock Storage Cleaner Pro$3.997 Days
  • Unlock Storage Cleaner Pro$49.991 Year

Questions

Is Zero Duplicates free?
Zero Duplicates is free to download, with in-app purchases available.
Is Storage & Contacts Cleaner free?
Storage & Contacts Cleaner is free to download, with in-app purchases available.
Do Zero Duplicates or Storage & Contacts Cleaner have ads?
Neither Zero Duplicates nor Storage & Contacts Cleaner shows ads.
Which is updated more often, Zero Duplicates or Storage & Contacts Cleaner?
Zero Duplicates ships an update weekly, and Storage & Contacts Cleaner every 2 weeks. Most recently, Zero Duplicates was updated on November 5, 2026 and Storage & Contacts Cleaner on November 6, 2026.

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