Brisbane mother Lorrae Carr says she has a good reason to lie about her age on dating apps.

The 51-year-old, who works in recruitment, says meeting a worthy match on Tinder when you are over 50 was like "finding a unicorn".

Brisbane mum Lorrae Carr,51, says she lies about her age on Tinder.

"The reason is once a woman hits 50 she becomes invisible, I have done an experiment on this to prove it," Ms Carr said.

"I posted identical photos and profiles, just changed my age by two years and got about five times the amount of responses as my younger self.