Most fitness apps track. Calx coaches. An AI system that analyzes every rep, estimates your body composition, fixes your form, tracks your nutrition, and keeps you accountable.
Hi everyone, I’m Koushik
I’ve been working on Calx for the past 8 months, but the idea started much earlier.
When I first started lifting weights about three years ago, I remember how difficult it felt to even know where to begin. I didn’t understand workouts, nutrition, or how to structure my training. I considered getting a personal trainer, but the cost was sometimes more than my monthly gym membership — with sessions in the US often starting around $50 and going up to $500 or more.
And I kept thinking: fitness shouldn’t feel this complicated or this expensive.
That thought stayed with me.
So I started building Calx — an AI fitness coach with health intelligence designed to understand you, your goals, your progress, and your body, and guide you throughout your fitness journey.
The goal is simple:
Give everyone access to a personal fitness coach, without the cost of a traditional personal trainer.
Calx starts at just $5, because I want fitness guidance to be accessible to people regardless of where they live or how much they can spend.
This is something I’ve spent the last 8 months building, learning, breaking, rebuilding, and believing in.
Today, I’m finally putting it out into the world. ❤️
the app will soon on play store and app store
If you have a minute, I’d genuinely love for you to try Calx and tell me what you think.
This is just the beginning.