US$1.99
Doctors may have seen it all before, but most people prefer a more private way to "cure" a less-than-spectacular sex life. Phone apps can provide a way to do your research without leaving telltale histories on your computer. Just be careful not to give the phone to your kids.
Sex Drive by Jakub Koter produces a binaural tone - you hear a tone at one frequency in one ear, and another frequency in the other - and this is supposed to promote a healthy sex life. Only for the purposes of this review, I tried the app, lying back and trying to relax as I endured an awful screeching sound through my headphones. I waited for the promised tingles, but felt nothing. Don't bother trying this one at home.
On the plus side, it does come with a handy sex calculator where you can enter your age and the age you started having sex, and it gives you a total based on a world average.
Another app, Sexual Health (free), provides a directory of sex-related conditions, explaining more about the condition, symptoms and the usual treatments. Topics range from yeast infections to erectile dysfunction. If you are hoping to be discreet about your search, having this app on your iPhone home screen is not the way forward.