"Ogury's study found a massive gender imbalance amongst dating app users. The men and women gender ratio on Tinder is almost nine to one, while even the "female-friendly" apps like Bumble have fewer than 20% of Bumble users, which indicates the men to women rate's seven to three."

Also, there's this:

"A 2016 study from Queen Mary University of London indicates that men on Tinder swipe right far more than women do, leaving them with a low success rate about 0.6%."