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A weight loss app can give you the motivation, discipline, and accountability you need to lose weight — and keep it off. Whether you’re looking to count calories, log meals, or track your workouts, there are tons of great apps for iPhone and Android devices. We chose some of the year’s best based on their high quality, reliability, and great user reviews.

Android rating: 4.3 stars

Price: $.99 per item

All you need to get started with this daily weight tracker and BMI calculator is your gender, age, height, and weight. The tracker will calculate your BMI with its signature Weight Wheel, and its many graphs help you understand the weight effects of recent diet choices. You can also monitor and track your progress over time.

iPhone rating: 4.7 stars

Android rating: 4.4 stars

Price: Free with in-app purchases

With an enormous food database, a barcode scanner, and recipe importer, tracking food on MyFitnessPal is fast and easy. The app tracks your nutrients and counts calories, plus it offers food insights to help you make healthier choices. You can also log your exercise and steps, as well as find support and motivation from the community.

iPhone rating: 4.7 stars

Android rating: 4.6 stars

Price: Free with in-app purchases

If you have a goal weight in mind, Lose It! is designed to help you get there. Plug in your profile details and goal weight, and the app will calculate your daily calorie budget. Then you can track your food, weight, and activities to reach that goal. Features include barcode scanning, tracking food by taking a photo with Snap It, and a status bar if you’re counting macros.

iPhone rating: 4.8 stars

Android rating: 4.5 stars

Price: Free with in-app purchases

WW (Weight Watchers) is consistently rated as the best diet for weight loss, and the app gives you access to food and fitness trackers, thousands of recipes, and a supportive community. Use the barcode scanner and enormous database to track what you eat, and monitor your fitness goals with the activity tracker. A nutritional science-backed system will also guide you toward a healthier diet.

iPhone rating: 4.7 stars

Android rating: 4.3 stars

Price: Free with in-app purchases

Instead of telling you to eat less and move more, Noom uses a psychology-based approach to identify your deeply held thoughts and beliefs about nutrition and exercise. Then it builds a customized approach to help you create healthy habits. The app helps you track your weight, food, exercise, blood pressure, and blood sugar all in one place.

iPhone rating: 4.8 stars

Price: Free with in-app purchases

Looking to lose weight, tone up, or find a helpful introduction to fitness? DailyBurn can help you do it all, with quick workouts, personalized plans, access to personal trainers and healthy recipes, and much more. The app syncs with other health and fitness apps and offers streaming on demand so you can work out on your schedule.

iPhone rating: 4.7 stars

Android rating: 4.6 stars

Price: $3.99 for iPhone, free with in-app purchases

MyNetDiary was created to make losing weight easy. Set your goal weight, and the app will create a calorie budget to help you lose weight safely. A daily weight forecast keeps you on track and makes adjustments as needed. Features include an enormous food database and barcode scanner, macronutrient and nutrition stats, and reminders to track your meals, weigh-ins, sleep, and blood pressure.

iPhone rating: 4.9 stars

Android rating: 4.6 stars

Price: Free with in-app purchases

Designed as a walking buddy and health coach in one, Pacer helps you track all of your activities and enjoy support and motivation from its community. The app features fun challenges, insightful data, outdoor route, personalized fitness plans, and guided workouts to help you reach your personal fitness goals.

iPhone rating: 4.7 stars

Android rating: 4.4 stars

Price: Free with in-app purchases

This nutrition and health tracker monitors the quality of your calories and offers free health and diet tips, plus support and motivation from fellow dieters. Scan barcodes for information that manufacturers don’t want you to notice, including things like added sugars, artificial sweeteners, trans fats, MSG, GMOs, and much more.

Android rating: 4.8 stars

Price: Free

This app supplies you with all the diet plans and workout routines you need to start losing weight at a fast pace. The app combines a variety of workout plans for every part of your body, while also allowing you to track your calories burned and calories consumed, so you can have an all-in-one tool to lose weight quickly.

iPhone rating: 4.9 stars

Price: Free with in-app purchases

Most of us don’t look forward to stepping on the scale when we’re trying to lose weight. But your weight is just one number: This app uses a complex algorithm to take your fitness and weight stats and calculates your actual progress over time.

iPhone rating: 4.7 stars

Android rating: 4.7 stars

Price: Free with in-app purchases

Calorie Counter has a variety of tools to help you eat a healthy diet, track your calories lost from exercise, and record a daily log of your fitness plan. This app makes it easy to scan and log your food, too, so that you don’t have to guess if you’re making the right calculations for specific nutrients. This app also syncs with Fitbit and Apple Health tools, allowing you to see the whole picture of your health.

iPhone rating: 4.7 stars

Android rating: 4.5 stars

Price: Free with in-app purchases

YAZIO wants to help you start a diet plan from scratch by giving you all the tools to develop and maintain a healthy diet and weight loss goal. It also gives you the option of developing a plan to either lose weight or build muscle, with a customizable diet plan, nutrition tracker, weight tracker, and encouragement you when you reach your personal milestones.

iPhone rating: 4.7 stars

Android rating: 4.6 stars

Price: Free with in-app purchases

Monitor Your Weight is a comprehensive weight-tracking and weight loss app that provides an almost dizzying array of weight stats that you can use to track your weight loss progress. The app includes charts and graphs that log your weight, BMI, average gains or losses, and even a tracker that tells you the quality of your weight loss progress rather than just focusing on the single number of your weight.

Android rating: 4.5 stars

Price: Free with in-app purchases

aktiBMI is a simple, straightforward, customizable weight loss app that gives you weight and health stats that are easy to digest. It also celebrates your achievements and encourages you to keep going when you reach your personal milestones.

iPhone rating: 4.8 stars

Android rating: 4.3 stars

Price: Free with in-app purchases

iTrackBites takes some of the anxiety and uncertainty out of your weight-loss journey: Just answer a few questions and you’ll receive a customized weight loss plan that you can then use to measure your progress. The app also offers thousands of recipes, guides to popular snacks and drinks, a barcode scanner to track specific food intake, and integration into popular fitness trackers like Fitbit or Apple Watch.

If you want to nominate an app for this list, email us at nominations@healthline.com.