Workout for Underweight vs WeightUp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Workout for Underweight
This app helps underweight individuals gain weight through personalized nutrition plans, guided workouts, and health tracking. It offers meal and workout reminders, smoothie recipes, and daily health insights to support a sustainable journey to improved health and physique.
- Weight and body metric tracking
- Personalized weight gain meal plans
- Guided weight gain training programs
- Workout and meal reminders
- Smoothie and snack recipes
- Daily health insights and progress reports
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Gaining weight is a process that requires the right combination of proper nutrition, consistent physical training, and regular health tracking. This app is specifically designed for underweight individuals, those with poor nutrient absorption, or anyone recovering after a period of physical decline. Developed with in-depth guidance from nutritionists and fitness trainers, the app provides step-by-step support on your journey to sustainably regain your health and improve your physique. Key Features: - Track weight and body metrics: Update your weight daily and monitor key health indicators such as BMI, BMR, and TDEE to understand your current condition and set clear, achievable goals. - Personalized weight gain meal plans: Choose meal portions based on daily calorie needs (2500–3000–3500 kcal). Options are tailored to different user types, including vegetarians, fitness enthusiasts, those recovering from illness, or people with sensitive digestion. - Weight gain training programs: Access guided workouts for building muscle at home or in the gym, complete with structured schedules, instructional videos, and customizable plans targeting full body, arms, shoulders, back, or glutes. - Workout schedule and meal reminders: The app automatically reminds you to eat on time, avoid skipping meals, and stay consistent with your exercise routine according to your personalized plan. - Smoothie and snack recipes: Get suggestions for light, easy-to-digest snacks and high-calorie smoothies that boost intake without causing bloating. - Daily health insights: Access expert-written articles covering effective weight gain tips, digestion improvement, hormonal balance, and healthy lifestyle motivation. - Progress reports: View weekly and monthly summaries of your body metrics and activity data through charts and visual analytics to track visible improvements over time. This weight gain app is the ideal choice for anyone seeking to gain weight at home naturally, especially those who are underweight and want to improve their physique and overall health through a balanced diet and structured fitness program. It’s not only suitable for men looking to build lean muscle or women aiming for a more toned body but also perfect for individuals working out at home without access to a gym. With healthy meal plans, detailed eating schedules, and tailored workout programs for people with difficulty gaining weight, you'll have a clear and scientifically backed roadmap to follow. Additionally, tools for calorie tracking, 3000 kcal/day meal guidance, belly-fat-free weight gain tips, and sustainable muscle-building routines will help you reach your goals safely and effectively. This is truly the most comprehensive weight gain app for skinny individuals you shouldn’t miss. Need a complete solution to eat smart, train right, and gain weight effectively? Download the app today and start transforming your body the smart and sustainable way. This app is not intended to provide medical advice. All content is for informational and reference purposes only. Please consult your doctor or a qualified healthcare provider before making any medical decisions or applying any recommendations from this app Update: - Optimize UI for Workout and exercises - Add more workout and exercises - Support more languages
WeightUp
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WeightUp is a weight gain app for people who eat and eat but still can't put on weight. Snap a photo of your meal and AI estimates the calories for you. WeightUp builds a weight gain plan around your body and lifestyle, so you always know how much to eat, without tedious food logging. WHAT YOU CAN DO • Snap a meal photo and get an AI calorie estimate in seconds • Get a personalized weight gain plan based on your age, height, weight, and activity level • See today's calories on a chart and track your progress toward your daily goal • Set a target weight and date, and gain at a steady, healthy pace • Get meal ideas that fit your calories per meal, so you never have to wonder what to eat • Turn on mealtime reminders so you don't skip a meal WHY WEIGHTUP • Just snap a photo. Logging takes seconds, so it's easy to keep going • Built only for gaining weight, so you see what you need and nothing else • Your plan is based on the Harris-Benedict equation, a well-established formula for estimating calorie needs • Small daily wins add up to real change GREAT FOR YOU IF • You eat a lot, but the scale won't move • You want to bulk up and support your training • You're underweight and want a healthier, stronger body Start today and take your first step toward the body you want. SUBSCRIPTION WeightUp offers an optional auto-renewing subscription, WeightUp Premium. Payment is charged to your Apple Account when you confirm your purchase. Your subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://www.notion.so/2811ae37949a806ab699ff66706f5083?pvs=21 Terms of Use: https://www.notion.so/WeightUp-2811ae37949a80fa896fc8f4e7930e0f?pvs=21 Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ WeightUp provides general health and wellness information and is not a medical device. If you have any health concerns, talk to a doctor or healthcare professional.
Screenshots
Verdict
The clearest difference is in-app purchases: Workout for Underweight at none against WeightUp's 1. Workout for Underweight also leads on iOS requirement (16.0 vs 26.1). WeightUp's advantage is update cadence (every 5 days vs monthly). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. WeightUp sells 1 in-app purchase, starting at $6.99 per month. Workout for Underweight asks for nothing beyond the download.
Workout for Underweight ships an update monthly, WeightUp every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | Workout for Underweight | WeightUp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 66 MB | 15 MB |
| Age rating | 4+ | 17+ |
| Developer | Ngoc Thanh Pham | Jimpei Yamamoto |
In-app purchases
Workout for Underweight
No in-app purchases
WeightUp
- Premium Monthly$6.991 Month
Questions
Is Workout for Underweight free?
Is WeightUp free?
Do Workout for Underweight or WeightUp have ads?
Which is updated more often, Workout for Underweight or WeightUp?
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