There are apps for people of various religions, sexualities, ethnicities, and more.
Demographics: The more tailored to you that a dating app is, the better your chance of finding someone right for you on it. 
Inability to send lewd content: You won't have to weed through the hookup-ready nearly as much on an app that screens for the exchange of genital pics and bans users for sending them. 
Social Media Linkage: You can more easily verify that a person is real, and learn about their life, when an app links to a social media profile. Prompts and Ice Breakers: Many apps facilitate you getting started talking to a match by asking you both the same question and popping up a mutual chat window in which to answer. Safety Features: In-app chat and video messaging can prevent catfishing, thus scaring off the less serious out there. Thorough Profiles: Apps that ask lots of questions about your life and tastes are much better than ones that focus only on photos and the most basic of personal info.