Tinder continues to tinker with its formula, with recent additions including a looping video feature and a geolocation-based Places to find matches who share your hangouts.
For Android users, Tinder just added a new payment process that bypasses Google Play, so that it doesn't have to share revenue with Google; it will be interesting to see how Google reacts to that move.
Match is also testing out a phone-based service called Ask Match that puts you in touch with a dating coach for advice and pointers.
Ask Match is currently available in New York City, though the dating service hopes to bring it nationwide by 2020.
Just looking to widen your circle of friends, as opposed to relationship?
Bumble has a BFF feature for people who are not looking for dates and a separate section for making business contacts.
For same-sex connections or friendships, either person has to make a move within 24 hours before that connection is gone, though you can get a 24-hour extension.
You create a simple profile with a handful of photos and a few sentences about yourself, then throw yourself at the Internet's mercy. If you like one, swipe the photo to the right; otherwise, swipe to the left.
If you both swipe right, you can send messages and set something up.
Coffee Meets Bagel (Android, i OS) takes the opposite approach to many dating apps, trying to focus on quality rather than quantity.
Every day at noon, the app will send men a small selection of potential matches based on their profile and preferences, and women are then sent a number of matches who've shown interest in them, leaving the ladies the option of reciprocating the like.
Created as a counterpoint to other prominent gay dating apps — and to put a greater emphasis on safety — Chappy (Android, i OS) is backed by Bumble and part of the bigger Badoo network of dating services.