The question is not how you can get users for your app. The question is why would someone want to sign up? You have to think about competitive advantage. What

The question is not how you can get users for your app. The question is why would someone want to sign up? You have to think about competitive advantage. What sets your dating app apart from existing dating sites, already populated with 1000's of profiles? I don't have a profile on dating sites (happily married), but I can imagine that a big problem for dating sites is people pretending to be different than they really are. That's a problem you could solve, for instance by only allowing profiles that have been referenced by friends/relatives. Heck, you could throw key parties (pun intended) where people could swap their credentials! Or instead of a traditional dating-app, make a geisha-app. It's not a date, it's company. Just throwing random ideas out there, but the general idea is either you cater to a niche, or you better have a massive marketing budget to take on the OKCupids of this world.