Best Weight Watcher Calculator Apps

246+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

The best weight watcher calculator apps on iPhone average 4.6★ across 246+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Weight Watcher Calculator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1WeightWatchers ProgramWeightWatchers ProgramFree4.8★ (2.4M)YesYesOct 2026
2BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (29K)NoYesOct 2026
3BMI Calculator‰BMI Calculator‰Free4.9★ (24K)YesNoOct 2026
4BMI Calculator & Weight TrackBMI Calculator & Weight TrackFree—NoNoMay 2026
5Calculator - smart tool & body mass index checkerCalculator - smart tool & body mass index checkerFree—NoNoMay 2026
6Food Score Calculator for Weight-Loss NutritionFood Score Calculator for Weight-Loss NutritionFree4.5★ (826)NoNoAug 2026
7Macro_CalculatorMacro_CalculatorFree—NoNoMay 2026
8BMI-Calculator: Weight TrackerBMI-Calculator: Weight TrackerFree4.7★ (193)YesYesOct 2026

Top Picks for Weight Watcher Calculator

WeightWatchers Program#1

WeightWatchers Program by WW International, Inc.

Weight Loss and Better Health
Editor's Choice
💪 Health & Fitness
4.8😊(2.4M ratings)
FreeAdsIn-App Purchases
#25in 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
BMI Calculator – Weight Loss#2

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Strong Contender
💪 Health & Fitness
4.5😞(29K ratings)
FreeIn-App Purchases
BMI Calculator – Weight Loss screenshot 1
BMI Calculator – Weight Loss screenshot 2
BMI Calculator – Weight Loss screenshot 3

Calculate and track your Body Mass Index (BMI) with this user-friendly app. It provides personalized health insights, ideal weight recommendations, and supports various units and classification systems. Monitor your weight journey and understand health risks.

What We Love

  • 🚀 Easy to use
  • 📊 Helps track progress
  • 💪 Motivates weight loss

Room to Improve

  • 🤕 Can cause insecurity
  • 🚫 Inaccurate BMI calculations
  • 🚨 Promotes unhealthy behaviors
BMI Calculator‰#3

BMI Calculator‰ by Tim O's Studios, LLC

Body Mass Index Calculator
Worth Considering
💪 Health & Fitness
4.9😐(24K ratings)
FreeAds
BMI Calculator‰ screenshot 1
BMI Calculator‰ screenshot 2

Easily calculate your Body Mass Index (BMI) with this straightforward application. It provides a quick way to understand your weight status based on your height and weight.

What We Love

  • 🚀 Quick and easy to use
  • 👍 Straightforward interface
  • ✅ Accurate BMI calculations
  • 💡 Supports both metric and imperial units

Room to Improve

  • 🐛 Inability to input decimal values for height and weight
  • 🔍 Lacks advanced features like body composition analysis
  • 💸 Aggressive advertising interrupting usage
  • 🔧 Compatibility issues with newer OS versions

More Weight Watcher Calculator apps to explore

FAQ about Weight Watcher Calculator

What are the best weight watcher calculator apps for iPhone?
WeightWatchers Program tops our weight watcher calculator apps ranking as of October 2026, with a 4.8-star average from 2.4M App Store ratings, and it's free to download.
Yes — 20 of the top weight watcher calculator apps we rank are free to download, including WeightWatchers Program and BMI Calculator – Weight Loss.
WeightWatchers Program shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 246+ weight watcher calculator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.