Best Weight Loss And Diet Tracking App

250+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Looking for free weight loss and diet tracking app? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Weight Loss And Diet Tracking App (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple: AI Weight Loss CoachSimple: AI Weight Loss CoachFree4.7★ (403K)NoYesSep 2026
2Lose It! – Calorie CounterLose It! – Calorie CounterFree4.8★ (776K)YesYesSep 2026
3WeightWatchers ProgramWeightWatchers ProgramFree4.8★ (2.4M)YesYesSep 2026
4MyFitnessPal: Calorie CounterMyFitnessPal: Calorie CounterFree4.7★ (2.4M)YesYesSep 2026
5My Diet Coach - Weight LossMy Diet Coach - Weight LossFree4.6★ (25K)YesYesSep 2026
6Simple Weight - Weight LossSimple Weight - Weight LossFree4.6★ (86)YesYesSep 2026
7Noom Weight Loss, Food TrackerNoom Weight Loss, Food TrackerFree4.7★ (872K)NoYesSep 2026
8Calorie Counter - MyNetDiaryCalorie Counter - MyNetDiaryFree4.8★ (165K)NoYesSep 2026

Top Picks for Weight Loss And Diet Tracking App

Simple: AI Weight Loss Coach#1

Simple: AI Weight Loss Coach by AM APPS

Build a Healthy Body for Life
Editor's Choice
💪 Health & Fitness
4.7😊(403K ratings)
FreeIn-App Purchases
Simple: AI Weight Loss Coach screenshot 1
Simple: AI Weight Loss Coach screenshot 2
Simple: AI Weight Loss Coach screenshot 3
Simple: AI Weight Loss Coach screenshot 4
Simple: AI Weight Loss Coach screenshot 5
Simple: AI Weight Loss Coach screenshot 6

This app offers personalized weight loss plans, real-time nutrition analysis via photo, and AI-driven coaching. It focuses on making healthy habits fun and sustainable without extreme restrictions or calorie counting.

What We Love

  • 🚀 Engaging app
  • 👍 Helpful tools
  • 👍 Supportive IF app
  • 👍 Keeps user accountable
  • 👍 Motivates user
  • 👍 Intuitive and user-friendly
  • 👍 Provides useful information and insights
  • 👍 Customizable fasting schedule
  • 👍 Tracks progress effectively

Room to Improve

  • 🐛 Difficulty navigating and logging food/fasting
  • 🐛 Inaccurate food analysis and tracking
  • 🐛 Glitchy and unreliable
  • 🔒 Questionable billing and subscription practices
  • 🐛 Cluttered and confusing interface
  • 🐛 Limited food database
Lose It! – Calorie Counter#2

Lose It! – Calorie Counter by FitNow

Food Tracker for Weight Loss
Strong Contender
💪 Health & Fitness
4.8😊(776K ratings)
FreeAdsIn-App Purchases
#21in Health & Fitness
Lose It! – Calorie Counter screenshot 1
Lose It! – Calorie Counter screenshot 2
Lose It! – Calorie Counter screenshot 3
Lose It! – Calorie Counter screenshot 4
Lose It! – Calorie Counter screenshot 5
Lose It! – Calorie Counter screenshot 6

This app helps users achieve their weight loss goals by tracking calorie intake, nutrition, and exercise. It offers features like AI-powered meal logging, barcode scanning, and personalized diet plans to simplify the journey to a healthier lifestyle.

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive food database
  • 💡 Helpful for weight loss
  • 🚀 Syncs with fitness trackers
  • 👍 Customizable goals and tracking
  • 👍 Motivating progress tracking

Room to Improve

  • 🐛 Inaccurate calorie/nutrition data
  • 💰 Paywall for basic features
  • 📢 Intrusive ads and upselling
  • 🐛 Buggy performance issues
  • 🔒 Privacy concerns with data sharing
WeightWatchers Program#3

WeightWatchers Program by WW International, Inc.

Weight Loss and Better Health
Worth Considering
💪 Health & Fitness
4.8😊(2.4M ratings)
FreeAdsIn-App Purchases
#23in Health & Fitness
WeightWatchers Program screenshot 1
WeightWatchers Program screenshot 2
WeightWatchers Program screenshot 3
WeightWatchers Program screenshot 4
WeightWatchers Program screenshot 5
WeightWatchers Program screenshot 6

This app offers a science-backed weight loss tracker and personalized diet plans. It includes specialized support for weight-loss medications, AI-powered progress tracking beyond the scale, and flexible tools for various weight management goals. Connect with coaches and a supportive community for lasting results.

What We Love

  • 🚀 Biggest little helper ever
  • 🚀 Tracking made easy
  • 👍 Keeps me accountable
  • 👍 Motivating
  • 👍 User-friendly
  • 👍 Intuitive
  • 👍 Comprehensive
  • 👍 Syncs with fitness trackers
  • 👍 Barcode scanner
  • 👍 Recipes and meal planning
  • 👍 Community support

Room to Improve

  • 🐛 Bugs and glitches
  • 🐛 Inconsistent food database
  • 🐛 Difficulty finding/adding foods
  • 🐛 Syncing issues with fitness trackers
  • 🐛 Confusing navigation
  • 🐛 Limited recipe editing options

More Weight Loss And Diet Tracking App apps to explore

FAQ about Weight Loss And Diet Tracking App

What is the best weight loss and diet tracking app for iPhone?
Simple: AI Weight Loss Coach tops our weight loss and diet tracking app ranking as of September 2026, with a 4.7-star average from 403K App Store ratings, and it's free to download.
Yes — 20 of the top weight loss and diet tracking app we rank are free to download, including Simple: AI Weight Loss Coach and Lose It! – Calorie Counter.
Simple: AI Weight Loss Coach has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ weight loss and diet tracking app on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app acts as an AI health coach designed to help users achieve lasting weight loss. It provides personalized plans, real-time nutrition analysis through photo recognition, on-demand coaching, and tailored workouts, all without requiring calorie counting or extreme dietary restrictions.
Key features include personalized coaching from an AI named Avo™, instant food feedback with Avo Vision (photo analysis), easy and personalized beginner-friendly workout plans, and a playful motivational character named Blinky. It also offers a real-time Success Score to track progress and quick logging for food, water, activity, and weight.