Singld Out, A DNA-Based Dating Service ....

Can Match You With Dates Who Will Smell Sexy
article at TechCrunch.
http://techcrunch.com/2014/08/28/singld-out-a-dna-based-dating-service-can-match-you-with-dates-who-will-smell-sexy/

but ... that proposal is a HOAX, a big FRAUD in the Online Dating Industry.
Genetic Matchmaking is mainly  based on the T_shirt Experiment that only proved:
normally cycling women (not pregnant and not taking contraceptive pills) are (temporarily) attracted by the perspiration scent of clothes used by men with a Major Histocompatibility Complex MHC more dissimilar to theirs,
and not proved: women attracted by those men for long term mating with commitment.
and
2 Scientific Papers debunk their claims.
1) "Human oestrus" Gangestad & Thornhill (2008)
"Only short-term but not long-term partner preferences tend to vary with the menstrual cycle"

2) "Does the contraceptive pill alter mate choice in humans?" Alvergne & Lummaa (2009)
".. whereas normally cycling women express a preference for MHC (Major Histocompatibility Complex) dissimilarity in mates, pill users prefer odours of MHC-SIMILAR men, indicating that pill use might eliminate adaptive preferences for genetic dissimilarity."
................
"...., Roberts et al. attempted to eliminate these potential confounds by adopting a within-subject design in which women's mate preferences were assessed before and after they began taking the pill. Women starting the pill showed a significant preference shift towards MHC SIMILARITY compared with three months before the pill was taken, a shift that was not observed in the control group of normally cycling women." 
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/07/executive-interview-jana-bayad-ceo-of.html

The key to long-lasting romance is STRICT PERSONALITY SIMILARITY.
http://onlinedatingsoundbarrier.blogspot.com.ar/2014/09/paper-improved-network-based.html