Mango Health (Free)

Keeping track of what medications you're taking, when to take them, and what to avoid while you're taking them can cause quite the headache. Mango Health's medication manager app aims to relieve that pain by allowing you to schedule your daily doses and receive timely reminders on your Apple Watch, so you never forget to take your medication or order a refill. When you schedule a dose, you'll see any warnings and drug interaction information. The app also offers rewards points for taking your medicine correctly, which you can exchange for gift cards to your favorite stores or for donations to leading charities.