Comparison

Cleanup Duplicate Contacts! vs Cisdem Duplicate Finder

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

Head to head
About

Cleanup Duplicate Contacts!

This app automatically finds and merges duplicate contacts in your address book. It offers customizable matching levels and provides detailed reports. The app also suggests contact updates using AI and can capture new contacts from email signatures.

Highlights
  • Instant duplicate contact cleanup
  • Customizable merge levels
  • Automatic contact update suggestions
  • Email signature contact capture
  • Manages multiple contact sources
  • Backup and restore contacts
Features
Read full description

***Cleanup Duplicate Contacts app is now completely FREE*** ***REDUCED FROM $2.99 to $0 FOR A LIMITED PERIOD*** ---- NEW FEATURE: AUTOMATIC CONTACT UPDATE SUGGESTIONS NOW AVAILABLE ON CLEAN UP DUPLICATES APP ---- Cleanup Duplicate Contacts app will automatically suggest contact updates if any of the contacts in your address book have any changes in their contact information such as phone, work email, company, job title, location etc. The Updates feature is powered by our proprietary and secure AI Engine which discovers when important connection details change in your address book, and surfaces new contact info or updates so no contact information in your contact book becomes outdated. This mobile App runs automatically but you will stay in control. Before scanning your contacts, you can configure the merge level: only detect 100% matches or also detect several kinds of partial matching. After that, it will run a scan to check for all duplicate contacts. Once the scan is complete, it will present you with the results. You can then choose to remove all matching contacts from your address book or to merge only a sub-selection of the duplicates found. We let you analyse your address book as many times as you need for free. Also, the full preview of duplicates and partial duplicates is free as we want to convince you of the power of our deduplication algorithm. After you had a chance to review the suggested merges and we convinced you that our algorithm does a great job, you'll be prompted to upgrade to the premium version. Once you upgraded the app once, you will be able to save later analysis results for free as often as you want. Merging contacts happens automatically. All partially matching contact details will be merged under just one contact for better management. The contact management App also works flawlessly with multiple sources like Gmail and iCloud to keep all duplicate contacts centralised. - App Features - # Instant Cleanup of Duplicate Contacts # Choose the merge-level you need # Very fast - 5000 contacts centralized in about 45 seconds # Detailed reports of scanned results # Automatic merging of duplicate contacts # Manages multiple contact sources like Gmail and iCloud # Creates a backup of your address book before cleaning # Lets you easily restore backups or a part of a backup # Save and export contacts from your iPhone as a .CSV file # Introducing Email Signature Capture - connect your mailbox for Email Signature Capture and automatically discover new contacts from your email exchanges. You can save newly found contacts and contact updates directly on your phone’s address book (**available only on business emails on Outlook and Gmail**) # ”Updates” feature: Cleanup Duplicate Contacts app will automatically suggest contact updates if any of the contacts in your address book have any changes in their contact information such as phone, work email, company, job title, location etc. Cleanup Duplicate Contacts will clean up your mobile address book within seconds and you'll be amazed. This app is the ultimate contact cleaner. *****Awesome Customer Support***** If you have any questions or suggestions, please contact us at help@circleback.com

About

Cisdem Duplicate Finder

This app helps you find and remove duplicate and similar photos and videos from your device's photo library. It frees up storage space and improves your photo viewing experience by organizing your media. The tool offers automatic selection and manual control for efficient cleanup.

Highlights
  • Remove duplicate photos
  • Remove similar photos
  • Remove duplicate videos
  • Auto-select duplicates for deletion
  • Customizable selection rules
  • Built-in preview feature
  • Safe deletion with restore option
Read full description

With this duplicate photo remover, you can easily remove duplicates and unwanted similar photos from the Photos app, free up storage space on your iPhone or iPad, and get a better photo viewing experience. Cisdem Duplicate Finder main features: - Remove duplicate photos • Find exactly identical photos, regardless of names • Display duplicate photos for you to easily view • Get a full-scale preview by simply tapping a photo • Auto-select all photos but one for deletion in each set of duplicates • Offer preset rules to customize the auto selection • 1 tap to delete all duplicate photos - Remove similar photos • Find photos that look the same but have different sizes or formats • Find photos that look alike • Let you set the similarity thresholds for comparing photos • Group similar photos for you to select unwanted photos manually • Also offer preset rules to auto-select potentially unwanted photos • 1 tap to delete all unwanted similar photos - Remove duplicate videos • Find exactly identical videos, regardless of names • Display duplicate videos for you to easily view • Play a video by simply tapping it • Auto-select all videos but one for deletion in each set of duplicates • Offer preset rules to customize the auto selection • 1 tap to delete all duplicate videos - Safe to use • Do NOT delete any file without your confirmation • Deleted files go to Recently Deleted in Photos app • Allow easy restoring of deleted files - Customize settings • Let you turn on/off the feature to find similar photos • Offer 3 preset rules for selecting duplicates: “Select by filename” (default), “Select newest”, and “Select oldest” • Offer 7 preset rules for helping select similar photos: “Select low-quality”, “Select low-resolution”, etc. • Allow you to manually select or deselect files Why choose Cisdem Duplicate Finder: • Use advanced algorithms • Accurately scan for duplicate pictures and videos • Smartly scan for similar photos • Neatly display scan results • Offer a built-in preview feature • Provide an auto select feature • Offer multiple preset selection rules • Allow you to clean up duplicates with just 2 taps • Simple and easy-to-understand interface • Easy to use for everyone Use this duplicate photo finder and cleaner to efficiently delete duplicate photos, live photos, screenshots and other images as well as duplicate videos on your iPhone or iPad. Clean up your photo collection and make room for new photos. Get it now! Terms of Use: https://www.cisdem.com/about/terms-of-use.html

Screenshots

Cleanup Duplicate Contacts!4 screens
Cisdem Duplicate Finder4 screens

Verdict

The call

The clearest difference is in-app purchases: Cleanup Duplicate Contacts! at none against Cisdem Duplicate Finder's 3. Cleanup Duplicate Contacts! also leads on ratings volume (8.8K vs 14) and review sentiment (83% vs 63%). Cisdem Duplicate Finder's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.6). On price, rating, update cadence and ads 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

Both are free to download. Cisdem Duplicate Finder sells 3 in-app purchases, starting at $19.99 per year. Cleanup Duplicate Contacts! asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Cisdem Duplicate Finder holds the better App Store score, 4.6 against 4.5. That said, the two scores are not equally well evidenced: Cleanup Duplicate Contacts! has 8.8K ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 83% of Cleanup Duplicate Contacts!'s written reviews are positive against 63% of Cisdem Duplicate Finder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Cleanup Duplicate Contacts! ships an update every 2 months, Cisdem Duplicate Finder monthly. The most recent releases landed on November 8, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Cleanup Duplicate Contacts! versus Cisdem Duplicate Finder: the parameters behind the verdict, then further details
ParameterCleanup Duplicate Contacts!Cisdem Duplicate Finder
PriceFreeFree
Rating4.5 (8.8K ratings)4.6 (14 ratings) — better
Positive reviews83.2% of reviews — better62.9% of reviews
Number of ratings8.8K — better14
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.615.0 — better
Further details — not scored
Size25 MB35 MB
Age rating4+4+
DeveloperBusiness Contacts Solutions, LLCCisdem Inc.

Customer experience

Cleanup Duplicate Contacts!

All ratings8,122 ratings
Positive86.7%
Neutral3.2%
Negative10.1%
Written reviews471 reviews
Positive83.2%
Neutral2.3%
Negative14.4%

Cisdem Duplicate Finder

All ratings14 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews159 reviews
Positive62.9%
Neutral2.5%
Negative34.6%

User reviews

Cleanup Duplicate Contacts!

From 8.8K App Store ratings

What we love

  • 🚀 Quick and efficient
  • 👍 Easy to use
  • 👍 Seamless operation
  • 👍 Straightforward
  • 👍 Effective

Room to improve

  • 🐛 Crashes
  • 🐛 Deleted contacts
  • 🐛 Unreliable
  • 🐛 Didn't merge all duplicates
  • 🔒 Privacy concerns about data sharing

Cisdem Duplicate Finder

From 14 App Store ratings

What we love

  • 🚀 Fast and efficient scanning
  • 🎯 Accurate duplicate detection
  • 👍 User-friendly interface
  • 🖼️ Excellent photo library cleanup
  • 💾 Recovers significant storage space

Room to improve

  • 🐢 Slow scanning on very large libraries
  • 💰 Requires paid subscription for deletion
  • 🐛 Crashes after scanning
  • ⚠️ Misleading free/paid model
  • 🔍 Similar image detection unreliable

Bugs and requests

Cleanup Duplicate Contacts!

Reported bugs

3 issues
  • Crashes during merging process
  • Inconsistent behavior when re-merging contacts
  • Deleting or losing contact information

Requested features

3 requests
  • Option to move contacts between groups
  • Ability to select all backup contacts for deletion
  • Improved backup and restore functionality

Cisdem Duplicate Finder

Reported bugs

12 issues
  • App crashes after scanning completion
  • Failed deletion with error codes
  • Scanning freezes at certain percentages
  • Blank screen during processing
  • Photos app crashes on delete action
Show 7 more
  • License activation issues
  • Restore purchase not working across versions
  • Deletion process extremely slow or hangs
  • Black and white image detection failure
  • Incompatibility with Photos 7.0
  • System library corruption reported
  • Scanning hangs on large file volumes

Requested features

12 requests
  • Cloud drive scanning support (OneDrive, Google Drive, iCloud)
  • Faster photo library scanning
  • Full file path display in results window
  • Ability to deselect individual folders
  • Delete based on creation date preference
Show 7 more
  • Merge duplicate folders option
  • Default location setting for kept files
  • Similarity parameter customization
  • Better black and white image detection
  • iOS photo album support
  • Faster scanning for large volumes
  • Improved similar photo accuracy

In-app purchases

None

Cleanup Duplicate Contacts!

No in-app purchases

3 purchases

Cisdem Duplicate Finder

Subscriptions1
  • Yearly Subscription$19.991 Year
One-time2
  • Annual Plan$19.99
  • Lifetime Subscription$39.99

Questions

Is Cleanup Duplicate Contacts! free?
Cleanup Duplicate Contacts! is free to download, with no in-app purchases.
Is Cisdem Duplicate Finder free?
Cisdem Duplicate Finder is free to download, with in-app purchases available.
Which has better reviews, Cleanup Duplicate Contacts! or Cisdem Duplicate Finder?
Cisdem Duplicate Finder is rated higher. Cleanup Duplicate Contacts! averages 4.5 out of 5 from 8.8K ratings, while Cisdem Duplicate Finder averages 4.6 from 14 ratings.
Do Cleanup Duplicate Contacts! or Cisdem Duplicate Finder have ads?
Neither Cleanup Duplicate Contacts! nor Cisdem Duplicate Finder shows ads.
Which is updated more often, Cleanup Duplicate Contacts! or Cisdem Duplicate Finder?
Cleanup Duplicate Contacts! ships an update every 2 months, and Cisdem Duplicate Finder monthly. Most recently, Cleanup Duplicate Contacts! was updated on November 8, 2026 and Cisdem Duplicate Finder on November 2, 2026.

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