Best Weight Loss Calculator Apps

248+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated November 2026

Out of 248+ weight loss calculator apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Weight Loss Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Happy ScaleHappy ScaleFree4.9★ (58K)NoYesNov 2026
2BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (30K)NoYesNov 2026
3Monitor Your WeightMonitor Your WeightFree4.8★ (24K)YesYesNov 2026
4Calorie Deficit CalculatorCalorie Deficit CalculatorFree4.7★ (4K)NoYesNov 2026
5Weight Diary LiteWeight Diary LiteFree4.8★ (7.3K)YesNoNov 2026
6WeightDrop Weight Loss TrackerWeightDrop Weight Loss TrackerFree4.8★ (4.4K)YesYesNov 2026
7Weight Loss Tracker & BMIWeight Loss Tracker & BMIFree—NoYesOct 2026
8BMI Calculator ~ Weight LossBMI Calculator ~ Weight LossFree—YesNoMay 2026

Top Picks for Weight Loss Calculator

Happy Scale#1

Happy Scale by Front Pocket Software LLC

Weight Loss Tracker
Editor's Choice
💪 Health & Fitness
4.9😊(58K ratings)
FreeIn-App Purchases
Happy Scale screenshot 1
Happy Scale screenshot 2
Happy Scale screenshot 3
Happy Scale screenshot 4
Happy Scale screenshot 5
Happy Scale screenshot 6

This app helps you understand your weight fluctuations using mathematical analysis to reveal your true progress. It smooths out daily weigh-in variations, offers predictions, and breaks down goals into manageable milestones. Seamlessly syncs with Apple Health and works across your devices.

What We Love

  • 👍 Excellent weight loss support tool
  • 👍 Motivating and engaging to track weight
  • 👍 Provides great insights and predictions
  • 👍 Smooths out weight fluctuations
  • 👍 Breaks down weight loss journey into milestones
  • 👍 Customizable and user-friendly interface
  • 👍 Reliable and consistent app with good customer support
  • 👍 Helps maintain weight loss and prevent regain
  • 👍 Syncs well with Apple Health
  • 👍 Provides a realistic and positive perspective on weight changes

Room to Improve

  • 🐛 Reminders don't work for some users
  • 💰 Subscription model is expensive for some
BMI Calculator – Weight Loss#2

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Strong Contender
💪 Health & Fitness
4.5😞(30K 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
Monitor Your Weight#3

Monitor Your Weight by Husain Al-Bustan

Track weight & body measures
Worth Considering
💪 Health & Fitness
4.8😊(24K ratings)
FreeAdsIn-App Purchases
Monitor Your Weight screenshot 1
Monitor Your Weight screenshot 2
Monitor Your Weight screenshot 3
Monitor Your Weight screenshot 4
Monitor Your Weight screenshot 5

This app helps you track your weight and body measurements to achieve your fitness goals. It offers detailed statistics, graphs, and personalized ideal weight calculations. You can manage multiple profiles and sync data across devices.

What We Love

  • 👍 Simple and easy to use
  • 📊 Helpful graphs and data visualization
  • 🔒 Secure with password protection
  • 🔗 Syncs across devices
  • 💪 Motivating for weight loss journey
  • 📈 Tracks progress effectively

Room to Improve

  • 🐛 Issues with syncing and data loss
  • 📏 Suggested weight targets may be unrealistic
  • 🔍 Difficult to edit past entries
  • 🔘 Limited customization options

More Weight Loss Calculator apps to explore

FAQ about Weight Loss Calculator

What are the best weight loss calculator apps for iPhone?
Happy Scale tops our weight loss calculator apps ranking as of November 2026, with a 4.9-star average from 58K App Store ratings, and it's free to download.
Yes — 19 of the top weight loss calculator apps we rank are free to download, including Happy Scale and BMI Calculator – Weight Loss.
Happy Scale has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 248+ weight loss calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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