I used to have an app that could display my iphones contact list in reverse chronological order. That was very helpful for "what was the name of that guy I met

I used to have an app that could display my iphones contact list in reverse chronological order. That was very helpful for "what was the name of that guy I met yesterday at that conference? The app I used has long since been abandoned, and the niche seems littered with scammy apps.