Bought it - Deleted it!
From the same developer I already have and enjoy world cards.
World contact does not add any noteworthy value over that one or the built in iPhone contact app.
Just made some things more complicated and slowed me down.
Deleted it - and now Im left with changes to all my other contacts which got a string inserted in the notes.
This is not clean and quality design and coding.
Jupp66 about
WorldCard Contacts – THE Contact Organization and Business Card Management Tool!, v2.3.3