I know that this idea is not patentable:
"An app that allows people to find their perfect match for marriage."
It is too general, too abstract:
But what about the implementation to the idea:
"My app will show members images of various objects. Members will then be able to react to those images with various emojis. The app then will match members based on how similar their reactions are of the same images"
This is a specific implementation of an abstract idea.
So is it patentable?