You list an awful lot of features on the home page. ("Plan, share, upload, analyze." are all features. Or take a look at all of your bullet points.)

Benefits sell software, not features.

Think of it this way -- you're a cyclist, right? Supposing you were trying to convert a family member into cycling, would you say "Involves moving a pair of pedals in circles quite a bit! Spins wheels! Forward motion while cycling!" No, you say "Do this and you will be healthier, have more energy, save money on gas, and not kill the planet." (Feel free to strike the last one if you are not an environmentalist. Gaia knows I'm not. But you get the general idea.)

Figure out what your software does for your user rather than what your software does, and then sell them on buying that tangible benefit to their lives.