Report updated Jun 4, 2026
Gainz
For individuals ranging from beginners to experienced athletes seeking to structure their bodybuilding and nutrition routines.
Gainz is an established health & fitness app that is completely free.
What is Gainz?
Gainz is a bodybuilding and nutrition tracking app for iOS and Android that provides personalized workout plans and macro-nutrient logging.
Users hire Gainz to consolidate fitness and diet management into one interface, reducing the social and cognitive cost of tracking progress across multiple apps.
Current Momentum
v9.37 · 2w ago
Maintenance- Ships general bug fixes.
- Maintains free-only access model.
Active Nemesis
Fitbod: Gym & Fitness Planner
By Fitbod
Other Rivals
7-Day Rank Pulse 🇺🇸
Health & FitnessNo ranking data
Rating Pulse 🇺🇸
Gathering signals...
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Meal planning with automated macro-nutrient calculations for protein, carbohydrates, and lipids
Customized workout sessions adjusted for user level, goals, and available equipment
Logging of workout progress, load analysis, and visual statistics tracking
How much does it cost?
- Free access to all core features
The app currently operates as a free tool with no visible IAP or subscription gates.
Who Built It?
Amon Studio
Providing AI-driven coaching and anonymous social tools to help users manage personal wellness and interpersonal dynamics.
Portfolio
13
Apps
What other apps does Amon Studio make?
Explore the full Amon Studio report
Portfolio breakdown, audience, momentum, and every app published by Amon Studio.
What do users think recently?
Analysis in progress, available soon
How have ratings & review volume moved?
Rating, review sentiment, and total reviews over time, with release markers showing the post-launch impact.
Vertical markers = app releases. Hover any release for the post-release impact delta.
What is the competitive landscape for Gainz?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
Gainz holds the #94 Free position in the French Health & Fitness category. The lack of monetization gates relative to category leaders signals a focus on user acquisition over revenue.
Rank progression
1 active ranking tracked — 30-day window
The rivals identified
Nemeses(1)
Fitbod is the dominant market leader in the personalized gym workout niche with a massive, highly-engaged user base and a mature, data-driven recommendation engine.
Differentiators
- Dynamic workout generation adapts to available equipment and user recovery status in real-time
- Advanced muscle recovery tracking visualizes fatigue levels to prevent overtraining and optimize split routines
- Deep integration with wearable devices provides automated heart rate and calorie burn data for precision
Head to head
Gainz must pivot toward a more robust, data-backed progression system to compete with Fitbod's algorithmic strength while leveraging its own nutrition-first positioning as a unique differentiator.
Contenders(3)
Muscle Booster targets the same bodybuilding-focused audience with a streamlined, goal-oriented workout planning interface.
Differentiators
- Personalized 30-day transformation plans provide clear, actionable milestones for users seeking rapid physique changes
- Simplified UI design prioritizes quick navigation between exercises to maintain workout intensity
Gymverse is a direct competitor in the AI-driven gym planning space, maintaining high release velocity and strong user ratings.
Differentiators
- AI-generated plans focus on specific aesthetic goals like hypertrophy and body recomposition for gym-goers
- Automated logging features minimize manual input time during high-intensity workout sessions
BODi dominates the home-based, instructor-led fitness category with a massive library of premium, high-production-value video content.
Differentiators
- Live-streamed classes and community challenges create a high-retention social ecosystem missing in standalone trackers
- Premium subscription model bundles fitness, nutrition, and supplement support into a single, cohesive brand experience
Same space(2)
A long-standing peer in the nutrition tracking space that excels at user-friendly calorie and macro logging.
Differentiators
- Massive, community-verified food database reduces manual entry time for complex meals and recipes
- Gamified weight loss milestones and visual progress tracking keep users engaged over long periods
FitOn is a major peer in the broader fitness category, focusing on accessible, celebrity-led video workouts.
Differentiators
- Freemium model offers high-quality video content without the paywall friction found in specialized trackers
- Social-first features allow users to invite friends to workouts, driving organic growth and retention
New entrants(2)
An emerging threat targeting the casual fitness segment with a unique 'lazy' or low-friction workout positioning.
Differentiators
- Micro-workout sessions designed for users with limited time or low initial fitness motivation
- Highly visual, simplified progress tracking that avoids the complexity of traditional bodybuilding apps
A recent entrant leveraging AI for rapid food logging, showing high release velocity in the last six months.
Differentiators
- AI-powered image recognition for food logging eliminates the need for manual search and entry
- Predictive nutrition suggestions adjust daily targets based on real-time activity and metabolic feedback
Compare Gainz against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Gainz
Strengths to defend, gaps to attack
Core Strengths
- Nutrition-first integration creates higher switching costs than single-focus trackers
- Apple HealthKit integration reduces onboarding friction for iOS users
Critical Frictions
- Free-only model lacks monetization levers
- Manual performance logging creates friction compared to AI-driven competitors
- No algorithmic progressive overload
Growth Levers
- B2B partnerships with nutrition brands
- Wearable integration to automate heart-rate and calorie data
Market Threats
- Fitbod's AI-driven recommendation engine
- AI-powered food logging entrants like Appediet
- High-production video content from BODi
What are the next best moves?
Ship subscription gate for advanced nutrition plans because the current free-only model lacks revenue levers → increase LTV
The current free-only model provides no visible monetization, limiting the ability to fund future development.
Trade-off: Pause the development of new exercise library videos — revenue sustainability is a higher priority than content expansion.
Audit manual logging flow because competitors like Gymverse automate input → reduce user churn
Manual input is a primary friction point identified in the competitive landscape against AI-driven trackers.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The free-only model is not a growth strategy but a liability, as it prevents the app from funding the algorithmic development needed to compete with Fitbod's AI-driven recommendation engine.
Feature Gaps vs Competitors
- Dynamic workout generation (available in Fitbod but missing here)
- Automated heart rate and calorie burn data from wearables (available in Fitbod but missing here)
- AI-powered image recognition for food logging (available in Appediet but missing here)
Key Takeaways
Gainz differentiates through integrated nutrition and training, but the lack of monetization and automated progression makes it vulnerable to AI-driven rivals, so the PM must prioritize a subscription model to fund competitive feature parity.
Where Is It Heading?
Stable
The health and fitness market is consolidating around AI-driven personalization, which puts Gainz at a disadvantage due to its manual-entry reliance. The PM must pivot to a monetization model to fund the algorithmic upgrades required to maintain relevance against category leaders.
The lack of monetization gates limits the ability to fund feature development, which leaves the app vulnerable to better-funded AI-driven competitors.
Recent updates focus on stability and bug fixes, indicating a maintenance-mode posture rather than active feature expansion.