Tinder, Match, OK Cupid, Hinge and Plenty of Fish users who display new "I'm vaccinated" badges will get free 'super-likes' or 'boosts'.
The apps have teamed with the HSE to encourage more young people to get the vaccine.
Matchmaker with Love HQ Mairead Loughman says vaccine status can be a deal breaker for some single people.
"Some clients are saying to me right, I would only like to go on dates, once I've been vaccinated, I have other clients that are saying to me, I don't want to go on a date with someone that's vaccinations because they've heard that I didn't know that there are some elements of it that are contagious. I'm not sure. I have other people then as well, that couldn't care less. They just want to find love."