224+ iOS apps curated and reviewed
The best free weight gain app on iPhone average 4.7★ across 224+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (493) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.7★ (2.3M) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.6★ (1.3K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (158K) | No | Yes | Jul 2026 |
| 5 |  | Free | — | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (88K) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.8★ (344K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.8★ (768K) | Yes | Yes | Jul 2026 |
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.
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.
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.
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.
This app offers personalized home workout and diet plans to help users gain weight and build muscle. It includes daily exercises, nutrition guidance, and progress tracking for a healthier physique without needing a gym.
This app helps you achieve your weight goals through sustainable calorie tracking, personalized meal plans, and delicious recipes. It focuses on long-term results by allowing you to eat what you like, including cheat meals, while meeting your daily calorie objectives. Track your progress, learn about nutrition, and sync with other health apps for a comprehensive approach.
This app helps you achieve your fitness goals by tracking your calorie and macronutrient intake. Simply answer lifestyle questions to create a personalized plan, then snap photos of your meals for an instant nutritional breakdown. It aims to simplify dieting and empower users with the tools and information needed to succeed.
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.
Track your weight loss journey with this intuitive app. It helps you monitor daily weight entries, visualize progress with a trend line, and estimate time to reach your goals without calorie counting. Includes calculators for goals and calories, plus privacy features.
This app creates personalized AI-driven workout plans to help you build muscle, gain strength, and lose weight. It adapts to your fitness level and available equipment, offering over 1000 exercises with video guides. Track your progress and get support from trainers.
Easily monitor your weight progress with this straightforward tracker. Log your weight regularly, set personal goals, and visualize your journey with customizable graphs. Personalize your experience with themes and icons, and integrate with the iOS Health app.
This app helps individuals aiming to gain weight by simplifying calorie tracking. It uses AI to analyze meals from photos or descriptions, allowing users to monitor progress and adjust intake goals for sustainable, healthy weight gain.
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.
Easily track your food intake, macros, and exercise to achieve your health goals, whether it's weight loss or building healthy habits. Utilize a verified food database, barcode scanner, and recipe builder for accurate logging. Sync with fitness devices for comprehensive tracking.
This app simplifies food tracking with an AI scanner that analyzes your meals from photos. It offers a fun, gamified experience with a customizable character to help you build healthy habits and achieve your weight goals.
Personalized workout plans adapt to your fitness goals and level, whether you train at home, the gym, or outdoors. Access numerous training sessions and hundreds of exercises to target all muscle groups. Track your progress over time and stay motivated with 30-minute sessions.
This app automatically generates personalized meal plans based on your dietary goals, food preferences, budget, and schedule. It helps you hit your nutrition targets without the hassle of manual tracking, offering customization and recipe adjustments.
This app offers comprehensive workout plans and diet guidance for various fitness goals, including weight loss, muscle gain, and toning. It features a vast exercise library with 3D animations, a personal workout diary, and the option to connect with certified personal coaches for tailored online training and nutrition plans.
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.
This app helps you achieve your health and weight goals through personalized calorie and macro tracking. It features AI-powered food logging, barcode scanning, and custom meal plans with recipes.