AI Workout Generation
Gemini AI creates complete training programs tailored to your goals — hypertrophy, strength, endurance, calisthenics, or any custom objective.
Fitness & Health - Operational
HevyDuty AI
Generate personalized, science-based workout programs in seconds using Google's Gemini AI. HevyDuty analyzes your training history, goals, and experience level to create balanced routines — then syncs them directly to the Hevy fitness tracker with smart weight suggestions for every set.
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Launch HevyDuty AI
HevyDuty AI was built to solve a common problem for strength athletes: creating effective, balanced workout programs takes time, knowledge, and experience. Most generic programs don't account for individual differences in training history, available equipment, or recovery capacity.
By combining Google's Gemini AI with deep integration into the Hevy fitness tracking ecosystem, HevyDuty bridges the gap between professional-level program design and everyday training. The app enforces safety constraints based on your experience level, preventing beginners from being prescribed exercises beyond their capability.
Whether you're training for muscle growth, raw strength, general fitness, or sport-specific endurance, HevyDuty generates periodized programs that adapt to your current strength levels. The smart weight system uses your actual lifting data — not generic formulas — to recommend starting loads, with an intelligent decay algorithm that reduces suggestions for exercises you haven't performed recently.
Available as a web app, PWA, and native Android application, HevyDuty works wherever you train. The free tier uses Gemini Flash for fast program generation, while power users can bring their own Gemini Pro API key for enhanced AI reasoning.
Why HevyDuty AI is listed on RatataLabs
HevyDuty AI is part of the RatataLabs public catalog because it has a specific use case, a live browser entry point, and enough supporting context for visitors to evaluate it before opening the app. The page records what the product does, what category it belongs to, and which practical problem it is meant to solve.
RatataLabs keeps these product pages visible so players, users, search engines, and AI answer systems can connect the app to its guides, policies, contact route, and broader development notes. That supporting context matters as much as the launch link.
Key features
Smart Weight Suggestions
Pulls your lifting history from Hevy to suggest accurate starting weights for every exercise, with intelligent decay for exercises you haven't done recently.
One-Click Hevy Sync
Upload your generated routine directly to Hevy with per-set weights. Supports straight sets, reverse pyramid, drop sets, wave loading, and more.
Privacy-First Design
API keys are stored locally on your device and never transmitted to our servers. Your data stays yours.
Exercise Swapping
Don't like an exercise? AI suggests muscle-matched alternatives that maintain your program's balance and training stimulus.
How it works
1
Set Your Goals
Choose your training goal, experience level, available days, preferred training method, and enter your biometrics.
2
AI Generates Your Program
Gemini AI processes your inputs and creates a complete, balanced workout program with specific sets, reps, and weights for each exercise.
3
Sync & Train
Review your program, swap any exercises you prefer, then upload it to Hevy with one click. Start training immediately.