Once you've signed in with your Facebook profile, the app matches you with a bloke and then asks you to choose two willing friends to accompany you.
Behind the scenes your mystery man will be asked to do the same.
The idea is that a group of six get together, have some drinks and take the pressure off the two who are actually on a date.
Plus, Grouper pay for your first round of cocktails to kick things off.
So far the service is only available in London, but 96% of New York daters said they'd give Grouper a second try.
Tell us your thoughts on Grouper by voting in the poll below or Tweet us @handbagcom.
Is taking your mates on a first date really a good idea?
Absolutely, they're good for moral support. No way, what if he fancies one of them more! First dates are hellish no matter who's there or not.
Absolutely, they're good for moral support. 75.00%
No way, what if he fancies one of them more! 16.67%
First dates are hellish no matter who's there or not. 8.33%
DON'T WRITE THIS ON YOUR DATING PROFILE
THIS PHOTO COULD STOP YOU FINDING LOVE
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