What health, fitness and exercise apps should I try?

My Health Checklist. A complete up-to-date proven resource for preventive recommendations about cancer screening and vaccinations is my health checklist 2012. It is easy to use, and provides a lot of useful information. It includes prevention checklists by age and gender, high-risk factors, and a complete a-z topic look up feature, along with useful links. It is for iphone and ipod and ipad, and well worth the $2.99.