Those enduring chemotherapy may find some difficulty in keeping track of their schedules. That's where Merck & Co.'s iChemoDiary swings into action. The app offers a personal oncology diary to help patients keep track of their schedules, treatments and any symptoms. A diary note feature helps users add additional information to share with a doctor or nurse. The app also includes a resource page that gives users access to sites that may be helpful to those suffering from cancer and those with loved ones who have the disease.