As a woman, your life has likely been touched by breast cancer. An estimated one in eight US women will develop invasive breast cancer at some point in her life. The current 5-year survival rate is 89 percent. Early detection is the key to beating this deadly disease (only lung cancer claims more female cancer deaths each year). Here are 10 iPhone apps designed to help women track the early signs of breast cancer and manage their treatment as they battle their way through it.