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Most fitness apps overcomplicate training—with too many choices and off-the-shelf "custom" plans.
GAIN gives you one clear workout every day, personalized to your body, goals, and schedule. It adapts automatically to your time, equipment, location, and missed days—so your plan always fits real life.
Built over a decade with real coaches and real data, GAIN has helped 2M+ people train smarter. This is AI fitness done right—grounded in real science, not hype.

GAIN: AI Fitness Done RightAI Fitness Streamlined & Simplfied—Built by Pioneers
Nicholas Gammellleft a comment
Hey Product Hunt 👋 I’m Nick, founder of GAIN Fitness—thanks for checking us out. We originally built GAIN years ago, long before “AI fitness” was a category. Over that time, I’ve built and launched 40+ fitness apps across my own startups and consulting work with brands like Equinox, TRX, and Life Fitness. Along the way, we learned what actually works—and where fitness apps tend to break down in...

GAIN: AI Fitness Done RightAI Fitness Streamlined & Simplfied—Built by Pioneers
