UnderForge vs GrabGains
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
UnderForge
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UnderForge is a personal fitness and longevity coach that builds a fully customized action plan around your body, your goals, and your life. Then guides you every step of the way and makes it easy to track progress. Whether you want to build muscle, burn body fat, increase strength, or simply get challenged by a world-class program, UnderForge forges a plan that is yours alone. CHOOSE YOUR GOAL Burn body fat Build muscle mass Increase strength Get challenged by your coach HOW IT WORKS When you join, your coach gets to know you. You'll answer a focused set of questions about your training experience, physique, schedule, nutrition, sleep, stress, and existing pain. Your coach then uses that full picture to generate a personalized hypothesis about your biggest obstacles and builds a prioritized, step-by-step action plan designed to break through them. You can review the plan and ask for revisions. This is your forge. HUMA OR AI COACH ALWAYS ON Choose between an AI-only plan and a human + AI plan. AI-only is fully complete and you have all the tools you need to achieve your goals. Human + AI plans adds a boost to accountability and even more personal touch. You decide. Ask about any step in your plan, request a technique breakdown, nutrition targets. Your coach remembers your full profile and adapts every response to your situation. Weekly check-ins keep your plan current. Progress is tracked right inside the app โ no need for spreadsheets or additional trackers. CONSISTENCY SCORE AS PRIORITY Most important is that you achieve consistency, therefore we created a unique score to help you stay consistent. The score is higher as you log workouts and meals. This score will also incorporate sleep and breathwork routines and adherence. TRAINING, NUTRITION AND RECOVERY SIMPLIFIED Training โ Personalized programming around your schedule, progressive overload, and warm-up protocols. Tailored to gym, home, or park training and available equipment. Nutrition โ Macro and calorie targets and guidelines based on your goals and body composition and preferences. Supports all dietary styles vegan, keto, halal, gluten-free, etc. Recovery โ Sleep and stress protocols, supplement guidance, and mobility recommendations that keep you performing. Logging โ Log workouts easily and meals with photos or text. BUILT FOR REAL PEOPLE From complete beginners to athletes with 10+ years of training, nutrition and longevity expertise, UnderForge adapts to your experience level, your available equipment, your dietary restrictions, and even the areas of your body you want to prioritize. Your plan is not a generic template. It is engineered for you. MUSCLE. LONGEVITY. FORGED. Privacy Policy: https://www.underforge.app/privacy-policy.php Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
GrabGains
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GrabGains helps you train with more structure, stay consistent and make progress you can actually see. Tell us your goal, experience level, training schedule and available equipment. Youโll get a training plan built around you, with the tools to plan, track and improve every workout. Whether you want to build muscle, get stronger, lose fat or simply train more consistently, everything is designed to help you train with more purpose. With the app you can: - Get personalized Smart Workouts based on your goals, level, schedule and equipment - Explore ready-made workout programs for different goals, levels and training setups - Plan your training week and move workouts when your schedule changes - Adjust your training load based on how you feel that day - Track every set, rep, weight and workout in seconds - See your previous performance and progression suggestions while you train - Swap exercises, reorder workouts and create your own workouts and exercises - Browse an exercise library with videos, instructions and filters for muscle group, equipment and type - Track personal records, estimated one-rep max, workout streaks and training history - See training volume and muscle distribution over time with Muscle Zone Tracking - Review your training calendar, most-used lifts and overall consistency Get weekly and monthly reviews based on your training data - Follow friends, share workouts and celebrate personal records together - Compete on leaderboards for exercises, consistency and relative training volume - Use practical gym tools including a rest timer, plate calculator and separate warm-up sets Your training history stays connected to every exercise, so you always know where you left off. Instead of starting from scratch each workout, you can see what you did last time and what to aim for next. Smart Workouts evolve as you progress. Weights, reps and progression can adjust over time, while you stay in control of your exercises, schedule and training intensity. On days when you are not feeling your best, you can reduce the training load without changing your entire plan. Progress is more than just the number on the scale. See how much you train, which muscle groups are getting enough attention, where you are improving and how consistent you have been over time. For extra guidance, coaching features can review your actual training data and help you understand trends in your progress. New accounts start with a free trial. After that, a subscription is required for Smart Workouts, Muscle Zone Tracking, advanced coaching features and other Premium features. Free access and limits may vary by feature and are shown in the app. Subscriptions renew automatically until cancelled through your account settings at least 24 hours before renewal. Some coaching features use a language model and may produce inaccurate responses. GrabGains provides general fitness and training information only. It is not a medical service and does not provide medical advice, diagnosis or treatment. Consult a healthcare professional before starting a new training program, especially if you have a medical condition, are pregnant, are recovering from an injury or have not trained for a long time. More information: - Website: https://grabgains.com - Exercises: https://grabgains.com/exercises - Privacy: https://grabgains.com/privacy-policy - Terms: https://grabgains.com/terms-and-conditions
Screenshots
Verdict
The clearest difference is update cadence: GrabGains at every 4 days against UnderForge's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. UnderForge sells 3 in-app purchases, starting at $3.99 per 7 days and GrabGains sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
UnderForge ships an update every 10 days, GrabGains every 4 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | UnderForge | GrabGains |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 4 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.1 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 128 MB | 62 MB |
| Age rating | 17+ | 17+ |
| Developer | Venture CO Group Korlatolt Felelossegu Tarsasag | GrabGains |
In-app purchases
UnderForge
- UnderForge Premium Weekly14 Days trial$3.997 Days
- UnderForge Premium Quarterly14 Days trial$29.993 Months
- UnderForge Premium Yearly14 Days trial$89.991 Year
GrabGains
- GrabGains Premium$8.991 Month
- GrabGains Premium$49.991 Year









