HabitBull For Healthy Habits
Do you have the hardest time sticking to new habits? HabitBull is a streak-based habit tracking app that will help you either break bad habits (like nail biting and smoking) or build new good habits (like working out and learning languages.) It lets you count a streak for each day you stick to your goals, and sends you graphs and data at the end of each month to help you understand when you messed up so you could do better the next month.

HabitBull for Android and iOS.