ContactOne: Perfect Contacts

ContactOne: Perfect Contacts

Clean up & merge duplicates

1 ratings
7 reviews
Free
In-App Purchases

Details

Released
August 17, 2026
Updated
October 13, 2026

Features

ContactOne: Perfect Contacts screenshot #1 for iPhone
ContactOne: Perfect Contacts screenshot #2 for iPhone
ContactOne: Perfect Contacts screenshot #3 for iPhone
ContactOne: Perfect Contacts screenshot #4 for iPhone
ContactOne: Perfect Contacts screenshot #5 for iPhone
ContactOne: Perfect Contacts screenshot #6 for iPhone
ContactOne: Perfect Contacts screenshot #7 for iPhone
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About

This app helps you organize your contacts by finding and merging duplicates across various accounts like iCloud, Google, and Microsoft. It allows you to review all changes before they are made and offers an easy undo option. The app also tidies up inconsistencies in phone numbers and labels.

✓Finds and merges duplicate contacts
✓Supports iCloud, Google, and Microsoft accounts
✓Review changes before merging
✓One-tap undo functionality
✓Cleans up phone number and label inconsistencies
✓Account-aware merging
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What's New in ContactOne

4.2

October 13, 2026

Clearer cleanup options: • The cleanup rules now say what they do in plain language. "Normalize grouping" has become "Match your phone's format" • Explanations are easier to read and no longer cut off part way. The hidden half was usually the part explaining why a change is safe • The phone rules run in a sensible order, the ones that decide whether a number still works before the one that only tidies how it looks • Section headings say what kind of detail they cover, so the thing you are looking for is easier to find This one came from Tom, who asked what "Normalize grouping" was supposed to mean. Thank you.

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Subscriptions & In-App Purchases

Annual

Unlimited merges and cleanups for a year.

$24.991 Year
How to cancel ContactOne subscription ⁉️

User reviews

Professional Contact Cleanup

I’m a CPA and using ContactOne has really helped me clean up my contacts so the duplicates are gone, which helps me have a clean list of professional contacts. Plus, when I travel all my contact phone numbers work internationally. Now I just check every month to see what’s new to clean up!

Time saver

Wish I had this years ago. Cleaned up three separate collections of contacts with so many duplicates and random errors. Went from almost 3000 work and personal contacts down to approximately 2000.

Smart contact cleanup that is safe

ContactOne makes a messy, sensitive job feel controlled. I liked the review-before-change approach and the ability to reverse actions rather than blindly automating everything. It’s smart, focused, privacy-conscious and clearly built with care by someone who understands contact management. A thoughtful approach to keeping contacts healthy.
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Easy to Use

Intuitive app that cleaned up my hundreds of contacts in a breeze. It recognizes similar contacts across my multiple accounts like Gmail, Outlook, and my iPhone contacts. I was able to review duplicate ones before merging and choosing which info to keep. The interface was easy to navigate as well. And if you made a mistake you can undo it in the history tab. Highly recommended for mobile power users!
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Finally! A powerful contact manager that respects privacy.

My contacts were a total mess with duplicates and inconsistent formats, but ContactOne fixed everything in minutes. I especially love the “Add country code” and “+prefix” features - it standardized my 600+ contacts instantly. What really sets the app apart is the privacy - knowing that “nothing ever leaves my phone” gives me a total peace of mind!
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FAQ

Does ContactOne have ads?

No, ContactOne does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features or subscriptions.

What accounts does ContactOne support for contact syncing?

ContactOne supports syncing with major accounts including iCloud, Google, and Microsoft. It is designed to handle contacts scattered across these platforms.

How does ContactOne ensure data safety during merging?

ContactOne prioritizes data safety by allowing users to review every proposed change before it is applied. It also offers a one-tap undo feature, ensuring that original contacts are safely stored and can be restored if needed.

What subscription plans are available for ContactOne?

ContactOne offers both monthly and annual subscription plans. The monthly plan is priced at $4.99 per month, and the annual plan is available for $24.99 per year.

How often is ContactOne updated?

ContactOne is updated regularly to ensure reliability and performance. The latest version, 3.8, was released on September 29, 2026, indicating a commitment to ongoing maintenance and improvements.

Is ContactOne suitable for all ages?

ContactOne has an age rating of 4+, making it suitable for a wide range of users. Its intuitive interface and safety features are designed for ease of use.

Can ContactOne merge contacts that have slight differences?

Yes, ContactOne's smart matching can identify duplicates even if they have nicknames, maiden names, or different phone numbers. However, it is careful not to merge contacts that are distinct individuals, such as two coworkers sharing an office line.

What happens if I don't like the changes ContactOne makes?

ContactOne provides a one-tap undo feature for all merges and changes. Your original contacts are safely backed up, allowing you to revert any modifications easily if you change your mind.