Hi there -
We have Moody Me, Food Diary, Pic Healthy, My Cycles, Sleep on It and I'm Expecting apps now, and they are for iPhone, iPod and iPad. Our goal is to have an app for every tracker.
They sync to the corresponding tracker, and are integrated so that if enter a headache on the My Cycles, it will update Moody Me, for example, and reflect that you had a headache on that day.
We are currently working on some Android apps.
http://www.medhelp.org/health_tools - All of our trackers, apps and health tools are listed here. The apps are towards the bottom of the page.
Emily