Comparison

Cleanup Duplicate Contacts! vs Kernalite

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in your address book, and surfaces new contact info or updates so no contact information in your contact book becomes outdated.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

Kernalite

Features
Read full description

Kernalite is the mobile app for real estate investors and acquisition teams using the Kernalite CRM. Capture leads, work your pipeline, talk to sellers, scout neighborhoods, and analyze deals — all from your phone, all in one fast, focused app. REQUIRES A KERNALITE CRM -Kernalite is a companion app. An active Kernalite CRM account is required to sign in and use it. Learn more or get set up at https://kernalite.com. Built for wholesalers, flippers, and buy-and-hold investors who close deals in the field, not behind a desk. WORK YOUR PIPELINE - Visual deal pipeline — move sellers from new lead to closed - Lead and contact profiles with full history at a glance - Seller Interest Score so you always know who to call next TALK TO SELLERS - Unified inbox for SMS, email, and calls - One-tap call, text, and email from any lead - AI-drafted reply suggestions to respond faster DRIVE FOR DOLLARS - GPS-tracked driving routes with live mapping - Drop a property and add it as a lead in seconds - Skip-trace owners right from the route ANALYZE EVERY DEAL - Instant deal sheets with ARV, repairs, and MAO - Live Zillow intelligence - Comps and exit-strategy guidance on the spot CLOSE FASTER - Cash-offer links and buyer matching - Documents and e-signature - Direct-mail campaigns and follow-up workflows STAY ON TOP OF IT ALL - Tasks, calendar, and reminders - Reports on conversions, channels, and pipeline value - Push notifications so nothing slips Kernalite keeps your entire acquisition workflow in your pocket, so you can find more deals, follow up faster, and close from anywhere. Download Kernalite and turn every drive, call, and lead into your next deal. Privacy Policy: https://kernalite.com/privacy.html Terms of Use: https://kernalite.com/terms.html EULA: https://kernalite.com/terms.html

Screenshots

Cleanup Duplicate Contacts!4 screens
Kernalite4 screens

Verdict

The call

The clearest difference is in-app purchases: Cleanup Duplicate Contacts! at none against Kernalite's 2. Kernalite's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, ads 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. Kernalite sells 2 in-app purchases, starting at $99.99 per month. Cleanup Duplicate Contacts! asks for nothing beyond the download.

UpkeepUpdate frequency

Cleanup Duplicate Contacts! ships an update every 2 months, Kernalite every 5 weeks. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
Cleanup Duplicate Contacts! versus Kernalite: the parameters behind the verdict, then further details
ParameterCleanup Duplicate Contacts!Kernalite
PriceFreeFree
Rating4.4 (8.5K ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings8.5K — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.1 — better
Further details — not scored
Size25 MB38 MB
Age rating4+4+
DeveloperBusiness Contacts Solutions, LLCDunn-Carabali LLC

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

Kernalite

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Cleanup Duplicate Contacts!

No in-app purchases

2 purchases

Kernalite

Subscriptions2
  • Monthly Subscription$99.991 Month
  • Yearly Subscription$989.991 Year

Questions

Is Cleanup Duplicate Contacts! free?
Cleanup Duplicate Contacts! is free to download, with no in-app purchases.
Is Kernalite free?
Kernalite is free to download, with in-app purchases available.
Do Cleanup Duplicate Contacts! or Kernalite have ads?
Neither Cleanup Duplicate Contacts! nor Kernalite shows ads.
Which is updated more often, Cleanup Duplicate Contacts! or Kernalite?
Cleanup Duplicate Contacts! ships an update every 2 months, and Kernalite every 5 weeks. Most recently, Cleanup Duplicate Contacts! was updated on October 19, 2026 and Kernalite on October 5, 2026.

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