MyFitnessPal

With the MyFitnessPal app, you can track and record your food and water intake and calories consumed toward a goal of weight loss and a healthier lifestyle. You’ll first have to sign up for a free account and then enter some details about yourself, such as height, weight, and ideal weight.

On your Apple Watch, the app starts by displaying the number of calories, carbs, fat, and protein that you’ve eaten. At the next screen, you can keep track of how much water you drink. Swipe to the next screen to add the number of calories for each meal and snack.

The next screen shows the totals of each nutrient that you can or should consume for the day. The final screen displays the number of steps you’ve taken throughout the day. The premium version will cost you $9.99 a month or $49.99 a year.