App is pretty straight forward but move slowly. One wrong button and you're screwed. I did the manual merge and it worked fine. For some reason it deleted my son, wife and a couple others. Still haven't figured that out. Also, the auto merge crashes on my phone with the iOS 11 update. So, you have too do it manually.Also, had a contact kept showing up under the "No Phone Number" category yet had a phone number. I went ahead and deleted it and sure enough the contact with the number disappeared. I wonder if there's a conflict with contacts that are also saved as favorites? Removing the app. Hope everything stays as it was.

This ap just does what it is intended to do. It manages contacts. Changes my 10+ year old addressbook that was messed with Google emails and FB profiles from 6000+ contacts to relevant 1800 contacts in minutes of fiddling with it.What can be improved:The process of selecting duplicates to be deleted has a back and forth toggling, it can use UI improvement by adding a delete bin in the duplicate selection page.

My contact list somehow exploded from 4,000 or so contacts to over 14,000 recently so I tried this app to clean up. The first time I ran it, it found 2,000 duplicates and I needed to upgrade to the Pro version with $1.99 to remove duplicates, so I did and it seemed to worked. Then I tried to analyze the list and now it keeps crushing every single time I try. I tried to uninstall and reinstall and somehow I had to pay again for the pro upgrade and it is still crushing everytime. I couldn't email the developer about the problem so i had to write this review and hope I will hear back on how to deduplicate again or get my money back....

I was skeptical but it was totally free and no gimmicks to buy anything else when I used the app. Completely easy to use. I opened it and followed the simple steps. It deleted 350 duplicate contacts and merged 195 contacts. It even had an option to back up your contacts on the cloud. The whole process took less than 5 minutes. I am amazed and how well it worked and will be recommending this app to all my friends!