Your definitive guide to all the best sex apps on the market - but would you use one? But instead of the traditional drinks-and-a-movie hook up, more and more of us are downloading the best sex apps that promise no strings sex. Perhaps surprisingly, Thursday only works on… yep, you guessed it, Thursdays. The new app, set to launch on 6th May in London and New York, is based around the premise that you should actually be having IRL dates, so only gives you a short but sweet 24 hours to chase those matches and arrange those dates. Not bad. Lover promises to offer a science-based approach to sexual hiccups and issues and essentially acts as a personal sex therapist. As above, it comes complete with guides, videos and educational games, so you can watch, listen, play and learn. Think feeling more relaxed during sex, getting connected with your partner, and expressing your sexual desires. Hear, hear.