Two taps crash – Contact Cleaner - Delete duplicates, merge contacts, sync with Facebook, and backup address book Review

I opened the app and began to explore. After two taps it crashes. When I open the app again, it immediately asks me to rate it. So here I am, two taps and it crashes. I try again.. crash. Now I'll try powering down my phone and rebooting to see if that helps. iPhone 6.
Review by Robér on Contact Cleaner - Delete duplicates, merge contacts, sync with Facebook, and backup address book.