Being partly vegetarian or vegan is good for the environment, reduces animal suffering and might even be good for your health (consult your doctor!)
This App allows you to quickly and easily gamify part veganism/vegetarianism.
Simply record 3 times a day whether you ate meat, were vegetarian or vegan. If you have snacks just record them as part of the nearest meal.
Part Vegetarian is completely free (with no in app purchases).