article: Comparison of Tinder, Match, Zoosk, Bumble and Other Dating Apps on Facebook.

http://www.slideshare.net/unmetric/comparison-of-tinder-matchcom-zoosk-bumble-and-other-dating-apps-on-facebook
http://digiday.com/brands/tinder-engaging-zoosk-international-fans-among-dating-apps-social-media/

Comparison of Tinder, Match.com, Zoosk, Bumble and Other Dating Apps on Facebook. from Unmetric

Please see:
Zoosk and Badoo --- Badoo and Zoosk. September 2015 decadence
http://onlinedatingsoundbarrier.blogspot.com.ar/2015/09/zoosk-and-badoo-badoo-and-zoosk.html

U.S.A. Mobile App Report / 2015 (comScore Report)
http://onlinedatingsoundbarrier.blogspot.com.ar/2015/09/usa-mobile-app-report-2015-comscore.html

Social dating is vaporware. 
Online Dating for serious daters does not need to be more social, it needs to be more effective/efficient. 
It needs to reduce the false positives problem and big data dating IS NOT the key to long-lasting romance. The key to long-lasting romance is STRICT PERSONALITY SIMILARITY and not "meet other people with similar interests".
Innovations are not adding more bells and whistles to actual online dating sites.
 
Please read: The 8 tips to innovate in the Online Dating Industry! 
 http://onlinedatingsoundbarrier.blogspot.com.ar/2013/12/the-8-tips-to-innovate-in-online-dating.html