This is to help eliminate the presence of fake profiles or bots. The downside to this app is it's built-in elitism. Teased Dating app Teased is less about profile photos and more about experiential data — what is this potential date really like? Also, their "team of dating experts" review everyone who signs up, and if you're not actually a professional, you're weeded out.
You set up a profile, and then the app works similarly to Tinder. The reason why it has gained so much popularity is that it is cheaper than any other app and it provides you with a lot of features as a free member. Best of all, BlackCupid offers a profile verification feature, so you can be assured there is no insidious behavior going on.