Best Weight Gain Calculator Apps & Games

249+ iOS apps & games curated and reviewed

4.4 avg rating
19 free apps & games
Updated August 2026

Out of 249+ weight gain calculator apps and games 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 & Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BMI Calculator – Weight LossBMI Calculator – Weight LossFree4.5★ (28K)NoYesAug 2026
2BMI-Calculator: Weight TrackerBMI-Calculator: Weight TrackerFree4.7★ (179)YesYesAug 2026
3Calorie Counter - MyNetDiaryCalorie Counter - MyNetDiaryFree4.8★ (162K)NoYesAug 2026
4Monitor Your WeightMonitor Your WeightFree4.8★ (23K)YesYesAug 2026
5MyFitnessPal: Calorie CounterMyFitnessPal: Calorie CounterFree4.7★ (2.4M)YesYesAug 2026
6Weight Tracker, BMI calculatorWeight Tracker, BMI calculatorFreeYesNoMay 2026
7YouGain: Weight Gain TrackerYouGain: Weight Gain TrackerFree5.0★ (2)NoYesJul 2026
8Pregnancy Weight Gain TrackerPregnancy Weight Gain Tracker$0.991.0★ (4)NoNoAug 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😞(28K 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: Weight Tracker#2

BMI-Calculator: Weight Tracker by 5W APPS GmbH

Weight Loss, BMI Tracker, IMC
Strong Contender
💪 Health & Fitness
4.7(179 ratings)
FreeAdsIn-App Purchases
BMI-Calculator: Weight Tracker screenshot 1
BMI-Calculator: Weight Tracker screenshot 2
BMI-Calculator: Weight Tracker screenshot 3

Easily calculate your Body Mass Index (BMI) to understand your weight classification and ideal weight. Track your weight progress towards a personal goal, whether for weight loss or gain. This tool provides a quick BMI assessment and classification based on WHO standards.

Calorie Counter - MyNetDiary#3

Calorie Counter - MyNetDiary by MyNetDiary Inc.

Food Nutrition Macro Tracker
Worth Considering
💪 Health & Fitness
4.8😊(162K ratings)
FreeIn-App Purchases
#21in Health & Fitness
Calorie Counter - MyNetDiary screenshot 1
Calorie Counter - MyNetDiary screenshot 2
Calorie Counter - MyNetDiary screenshot 3
Calorie Counter - MyNetDiary screenshot 4
Calorie Counter - MyNetDiary screenshot 5
Calorie Counter - MyNetDiary screenshot 6

Track your food intake and nutrition with a comprehensive calorie counter. Log meals quickly using a barcode scanner, photo analysis, or search. Monitor macros, vitamins, minerals, and more with detailed insights and progress charts.

What We Love

  • 👍 Easy to use
  • 🚀 Fast barcode scanning
  • 📊 Comprehensive data and analytics
  • 💪 Helped with weight loss and healthy habits

Room to Improve

  • 🐛 Inconsistent steps tracking
  • 📉 Reduced free features over time
  • 🔒 Privacy concerns with data access

More Weight Gain Calculator apps to explore

4
Monitor Your Weight
Monitor Your Weight
Monitor Your Weight
Track weight & body measures
Free

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.

Track single or multiple profilesTrack body measurementsCalculate ideal weight
💪 Health & Fitness
(23K)
free with in-app purchases
5
MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie Counter
MyFitnessPal: Calorie Counter
Workout & AI Nutrition Tracker
Free

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.

AI Food TrackerCalorie and Macro TrackingWater Intake Monitoring
💪 Health & Fitness
(2.4M)
free with in-app purchases
6
Weight Tracker, BMI calculator
Weight Tracker, BMI calculator
Weight Tracker, BMI calculator
Lose, scale, gain body tracker
Free
💪 Health & Fitness
(0)
7
YouGain: Weight Gain Tracker
YouGain: Weight Gain Tracker
YouGain: Weight Gain Tracker
Weight scale, body tracker
Free

Monitor your weight journey with daily logging, photo progress, and interactive charts. Set personalized goals and visualize your transformation with a motivational progress score. This intuitive app helps you stay on track to achieve your weight gain objectives.

Daily weight loggingPhoto progress trackingInteractive charts
💪 Health & Fitness
(2)
freemium
8
Pregnancy Weight Gain Tracker
Pregnancy Weight Gain Tracker
Pregnancy Weight Gain Tracker
Keep your weight gain on track
$0.99

Monitor your weight gain throughout pregnancy to ensure a healthy outcome for you and your baby. Compare your progress against recommended ranges based on pre-pregnancy BMI. Learn how your weight gain is distributed.

Track pregnancy weight gainCompare to recommended rangesAdvice based on pre-pregnancy BMI
💪 Health & Fitness
(4)
paid
9
Weight Calculator BMI BMR RDI
Weight Calculator BMI BMR RDI
Weight Calculator BMI BMR RDI
Calculate your ideal weight
Free

Calculate your Body Mass Index (BMI), ideal weight, Basal Metabolic Rate (BMR), and Recommended Daily Intake (RDI). This tool helps you understand your body's health metrics based on height and weight.

Body Mass Index (BMI) calculationIdeal weight estimationBasal Metabolic Rate (BMR) calculation
💪 Health & Fitness
(9)
free with in-app purchases
10
The Weight Gain App
The Weight Gain App
The Weight Gain App
Gain Weight, Muscle & Curves
Free

This app provides personalized weekly meal plans and training regimens to help users gain weight and build muscle. It supports various dietary preferences and includes features for tracking progress and managing grocery lists.

Tailored weekly meal plansCustomized training regimensSupport for various diets (keto, vegan, etc.)
💪 Health & Fitness
(602)
free with in-app purchases
11
yourWeight: Weight Tracker
yourWeight: Weight Tracker
yourWeight: Weight Tracker
Track Weight Loss, Gain & BMI
Free

Easily track your weight, monitor progress towards your goals, and calculate your BMI. This simple app helps you visualize your journey with graphs and reminders, offering Apple Watch and Health integration for seamless data management.

Daily weight recordingWeight goal settingBMI calculation
💪 Health & Fitness
(579)
free with in-app purchases
12
Health calculator: weight, BMI
Health calculator: weight, BMI
Health calculator: weight, BMI
Weight gain / loss, pregnancy
Free

This app helps you manage your health by calculating key metrics like BMI, daily calorie needs, and target heart rate zones. It also assists with pregnancy planning and hydration goals based on your personal data.

BMI calculationDaily calorie requirementsTarget heart rate zones
💪 Health & Fitness
(47)
ad-supported
13
Weight Monitor, BMI Calculator
Weight Monitor, BMI Calculator
Weight Monitor, BMI Calculator
Weight Loss Tracker & Ozempic
Free

This app helps you track your weight loss or gain journey with motivational tools and progress monitoring. Set goals, join challenges, and log body measurements to stay on track. Enjoy a secure, private experience with customizable features.

Weight tracking and BMI calculationBody measurement logging28-day healthy habit challenges
💪 Health & Fitness
(713)
free with in-app purchases
14
Weight Gain Workouts Food Diet
Weight Gain Workouts Food Diet
Weight Gain Workouts Food Diet
Power Up: Boost Confidence!
Free

This app offers a comprehensive program for healthy weight gain and muscle building. It provides personalized 30-day workout plans and meal guidance, adaptable for home or gym use with or without equipment. Track your progress with animated guides and achieve your fitness goals.

30-day weight gain workout routinesStep-by-step animated exercise guidesPersonalized home workouts (no equipment needed)
💪 Health & Fitness
(1.3K)
free with in-app purchases
15
Cryptid Aquarium
Cryptid Aquarium
Cryptid Aquarium
Nysterious creatures.
Free

Discover and collect a variety of mysterious creatures, from fish and animals to plants and mushrooms. Feed them to make them multiply, train them for sports competitions, and aim for the top rankings. This game offers a fun and engaging way to pass the time with its free-range breeding and farm-building mechanics.

Collect diverse creaturesFeed and breed creaturesTrain creatures for sports
🎮 Games
(246)
free with in-app purchases
16
Weight Gain Workouts & Food
Weight Gain Workouts & Food
Weight Gain Workouts & Food
Workout and Meal Recipes
Free
🍔 Food & Drink
(0)
17
Weight Gain Workouts & Foods
Weight Gain Workouts & Foods
Weight Gain Workouts & Foods
Workout and Meal Recipes
Free
🎬 Entertainment
(0)
18
Weight Tracker-BMI Calculator
Weight Tracker-BMI Calculator
Weight Tracker-BMI Calculator
Gain or lose weight journal
Free
💪 Health & Fitness
(0)
19
BMI Calculator - Lose Weight
BMI Calculator - Lose Weight
BMI Calculator - Lose Weight
#1 Weight Loss/Gain Tracker
Free
💪 Health & Fitness
(0)
20
LifeCal - BMI Calculator
LifeCal - BMI Calculator
LifeCal - BMI Calculator
BMI, Calorie, TDEE and More!
Free
💪 Health & Fitness
(0)

FAQ about Weight Gain Calculator

What are the best weight gain calculator apps & games for iPhone?
BMI Calculator – Weight Loss tops our weight gain calculator apps & games ranking as of August 2026, with a 4.5-star average from 28K App Store ratings, and it's free to download.
Yes — 19 of the top weight gain calculator apps & games we rank are free to download, including BMI Calculator – Weight Loss and BMI-Calculator: Weight Tracker.
BMI Calculator – Weight Loss has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ weight gain calculator apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app calculates and tracks your Body Mass Index (BMI) using accurate and user-friendly methods. It offers personalized health insights, ideal weight recommendations, and visual feedback on your BMI categories. You can monitor your weight loss or gain journey and understand potential health risks associated with your BMI.
Key features include instant BMI calculation with an animated visual gauge, personalized health insights, and ideal weight recommendations. It supports metric and imperial units, offers a choice between WHO and DGE classification systems, and includes age and gender-specific calculations. The app also works offline and has a clean, intuitive interface.