Has anyone used the Crossly app and what was your experience?

I had an email today from the makers of this app.

Does anyone have any experience of it? How did it perform for you?

Anybody feel it could be a nuisance to shoppers? (It works by suggesting additional purchases when they are checking out from somebody else’s store.)

My main query is - obviously we would not link to direct competitors but more likely to thematically aligned stores. Is it actually possible to identify merchants who are using shopify in a specified geography by eg category? I don’t believe our own store makes a point of telling the world it’s a shopify store.

Any insight/experience gratefully received.

Regards,

Paul V