Best Weight Gain Calculator Apps

249+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated October 2026

Out of 249+ weight gain 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 Gain Calculator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (30K)NoYesOct 2026
2Monitor Your WeightMonitor Your WeightFree4.8★ (24K)YesYesOct 2026
3MyFitnessPal: Calorie CounterMyFitnessPal: Calorie CounterFree4.7★ (2.4M)YesYesOct 2026
4Calorie Counter - MyNetDiaryCalorie Counter - MyNetDiaryFree4.8★ (171K)NoYesOct 2026
5BMI-Calculator: Weight TrackerBMI-Calculator: Weight TrackerFree4.7★ (201)YesYesOct 2026
6Health calculator: weight, BMIHealth calculator: weight, BMIFree4.6★ (47)YesNoOct 2026
7YouGain: Weight Gain TrackerYouGain: Weight Gain TrackerFree4.7★ (3)NoYesOct 2026
8Beefy: Gain weight. Finally.Beefy: Gain weight. Finally.Free—NoYesOct 2026

Top Picks for Weight Gain Calculator

BMI Calculator – Weight Loss#1

BMI Calculator – Weight Loss by Steffen Mayer

Calculate your ideal weight
Editor's Choice
💪 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#2

Monitor Your Weight by Husain Al-Bustan

Track weight & body measures
Strong Contender
💪 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

Track your weight and body measurements to achieve your fitness goals. This app offers detailed statistics, personalized ideal weight suggestions, and the ability to manage multiple profiles. It supports various units and integrates with digital scales and HealthKit.

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
MyFitnessPal: Calorie Counter#3

MyFitnessPal: Calorie Counter by MyFitnessPal, Inc.

AI Coach & Nutrition Tracker
Worth Considering
💪 Health & Fitness
4.7😐(2.4M ratings)
FreeAdsIn-App Purchases
#1in Health & Fitness
MyFitnessPal: Calorie Counter screenshot 1
MyFitnessPal: Calorie Counter screenshot 2
MyFitnessPal: Calorie Counter screenshot 3
MyFitnessPal: Calorie Counter screenshot 4
MyFitnessPal: Calorie Counter screenshot 5
MyFitnessPal: Calorie Counter screenshot 6

This AI-powered app helps you achieve your health and fitness goals by tracking calories, macros, and water intake. It offers a comprehensive food database, workout logging, personalized goals, and meal planning to monitor your progress.

What We Love

  • 💪 Effective for weight loss/healthy eating
  • 🔍 Extensive food database
  • 📊 Helpful tracking and progress features
  • 🤝 Social features and community support

Room to Improve

  • 🐛 Buggy and glitchy app performance
  • 💰 Aggressive push for premium subscription
  • 📋 Inaccurate food data and calculations
  • 🔒 Privacy concerns with data sharing

More Weight Gain Calculator apps to explore

FAQ about Weight Gain Calculator

What are the best weight gain calculator apps for iPhone?
BMI Calculator – Weight Loss tops our weight gain calculator apps ranking as of October 2026, with a 4.5-star average from 30K App Store ratings, and it's free to download.
Yes — 19 of the top weight gain calculator apps we rank are free to download, including BMI Calculator – Weight Loss and Monitor Your Weight.
BMI Calculator – Weight Loss has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ weight gain calculator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.