Duplicate Contacts Finder - Contact Optimizer Pro is an app by RRsaikat in the Tools category, listed since at least February 2021. It has no native code, so it runs on any Android processor.
It asks for 9 permissions, 3 of them sensitive: read contacts, modify shared storage and write contacts.
What's new in v1.1.15
- Fix navigation issue
- UI improvements
Description
From the listing uploaded by “appupdater”.
We all wish for an organized and clutter-free contacts list in our Android smartphone.However, searching and deleting duplicate contacts manually is a damn tough task. Moreover most duplicate contacts remover apps have complicated layouts, too many settings, annoying ads, or all of the above.
Duplicate Contacts Finder is a Contact Optimizer app aim to address this problem by providing a nice and easy-to-use experience that doesn't overwhelm you that allows you to scan your contacts for duplicates using mobile numbers or contact names.
After contacts scan, you can select from list accounts to remove duplicate contacts. The deleted contacts will be exported to a .vcf file on your phone storage, in case you need to restore it.
Duplicate Contacts Finder - Contact Optimizer app is a combination of Duplicate Contacts Merger and Duplicate Contacts Remover and it's a complete contacts manager application for Android. Its Duplicate Contacts optimizer which manage contacts and makes your phonebook clean, light, smart and user friendly.
Duplicate Contacts Optimizer app main functionalities:
1. Merge contacts with similar phone number
2. Merge duplicate contacts ( Merge Duplicates )
3. Identify duplicate contacts ( Duplicate Contact Identifier)
4. Merge contacts with similar name
5. In future updates backup contacts can be shared on gmail, yahoo, outlook, etc.
6. Make deleted contacts backup and convert contacts to vcard / vcf file
7. Delete contacts with no name, number, email or unused from long time
How app works or how to manage contacts ?
● Clean & Intuitive Interface.
● Show user option to merge duplicate contacts, merge contacts with similar name or phone number.
● Finds duplicate contacts easily. (Contacts with similar name or phone number )
● Read complete address book and take backup of all deleted contacts.
● Merged contacts are saved to phonebook, this will make changes in your phonebook, remove duplicate contacts and add merged contacts.
● Allows you to create backup of all your contacts before scanning begins.
● Removes all duplicates and find similar contacts as well.
● Light on device resources and battery.
How it can help you?
A. Delete duplicate contacts or Remove duplicate Contact by linking two or more duplicate contacts
B. Find duplicate contacts
C. Cleanup Contacts
D. Give you a cluster free contact
E. Optimize contacts with duplicate numbers within same contact
F. Save merged contacts to phone book
G. Remove unused contacts
Export Deleted Contacts
1. Share contacts backups (In future update)
2. Take regular backup for your deleted contacts ( address book backup will be included into later updates)
Duplicate Contacts Remover ( Remove Duplicates )
1. Find phonebook contacts with similar name / phone number and email
2. Selective duplicate contacts merge
3. Backup Merged contacts and all your duplicate contacts will be removed from address book.
All functionalities of this application are free.
After merging contacts it provides option to sync it with your contact book, so when you sync all merged contacts will be removed and modified contacts will be saved in phonebook.
Important note:
Different phones have different implementation of contacts due to different manufacturer and Android version. If the application is not showing your contacts or cant delete contacts, please let us know what phone you are using and what accounts you have. We will be happy to support it for you.
Remember:
Some vendor like xiomi doesn't allow any modification using third party apps rather having default contact/phonebook app.
App needs following permission to work properly:
1. Network (Internet) access: For share functionality and checking for app updates, this permission required
2. Call Phone No: To call from Contacts
3. Account access: To store contacts into phonebook
4. Internal storage & SD card read/write: To store contact backup
5. Modify & Read contacts: For merge & delete process
Thanks for your support!
Security & authenticity
Security rating: Trusted
Signing certificate
Signature matches the Google Play versionChecked by the source store on Sep 27, 2026.
Certificate from Google Play App SigningGoogle keeps the signing key for the developer, so the certificate carries Google's name.
Store checks and file details
Developer signature verifiedSep 27, 2026
Validated against Google PlaySep 27, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Uploaded by “appupdater”Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (9)
Duplicate Contacts Finder - Contact Optimizer Pro requests 9 permissions, 3 of them sensitive.
Duplicate Contacts Finder - Contact Optimizer Pro APK: questions and answers
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the Duplicate Contacts Finder - Contact Optimizer Pro APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 413f74ecc55440e70016a927af1acaac.