Comparison

Cleanup Duplicate Contacts! vs Enq Books

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
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***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in your address book, and surfaces new contact info or updates so no contact information in your contact book becomes outdated.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

Enq Books

Features
Read full description

Enq Books is a powerful yet lightweight mobile version of our web application, designed to make lead management seamless and efficient. Whether you're tracking potential customers, updating lead details, or analyzing lead statistics, Enq Books provides all the essential tools at your fingertips. The app features an intuitive Lead List for easy organization, Lead Stats for insights into performance, and an Update Leads section for real-time modifications. The Dashboard provides a comprehensive overview of your business metrics, while the User Profile ensures personalized access and settings. With Enq Books, you can stay on top of your leads anytime, anywhere, ensuring productivity and efficiency on the move.

Screenshots

Cleanup Duplicate Contacts!4 screens
Enq Books4 screens

Verdict

The call

The clearest difference is update cadence: Cleanup Duplicate Contacts! at every 2 months against Enq Books's every 4 months. Enq Books's advantage is iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Cleanup Duplicate Contacts! ships an update every 2 months, Enq Books every 4 months. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Cleanup Duplicate Contacts! versus Enq Books: the parameters behind the verdict, then further details
ParameterCleanup Duplicate Contacts!Enq Books
PriceFreeFree
Rating4.5 (8.8K ratings) — better—
Positive reviews83.2% of reviews—
Number of ratings8.8K — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size25 MB39 MB
Age rating4+4+
DeveloperBusiness Contacts Solutions, LLCRouteWala Guest App

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

Enq Books

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Cleanup Duplicate Contacts!

No in-app purchases

None

Enq Books

No in-app purchases

Questions

Is Cleanup Duplicate Contacts! free?
Cleanup Duplicate Contacts! is free to download, with no in-app purchases.
Is Enq Books free?
Enq Books is free to download, with no in-app purchases.
Do Cleanup Duplicate Contacts! or Enq Books have ads?
Neither Cleanup Duplicate Contacts! nor Enq Books shows ads.
Which is updated more often, Cleanup Duplicate Contacts! or Enq Books?
Cleanup Duplicate Contacts! ships an update every 2 months, and Enq Books every 4 months. Most recently, Cleanup Duplicate Contacts! was updated on November 5, 2026 and Enq Books on October 25, 2026.

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