In this episode of The Free Lunch, Eddie Ross sits down with Mauro Botanes, the 21-year-old co-founder and CPO of Symmetry — now Spain’s fastest-growing health and fitness app, with more than 450,000 downloads in under six months.
Mauro shares how he went from being diagnostically obese to preparing for bodybuilding competitions, launching a YouTube channel, dropping out of university, and building one of the most viral fitness apps in the Spanish-speaking world.
We break down:
How Symmetry reached 452K+ downloads organically
The UGC + AI growth engine powering their viral traction
Why most fitness apps fail — and what Symmetry did differently
Building a startup at 21 (leadership, co-founder dynamics, structure)
Using AI to develop products faster and at lower cost
The future of fitness, self-development, and AI-powered personal coaching
The mindset (resilience, belief, tenacity) required to scale a company fast
If you’re interested in startups, app growth, fitness, AI, entrepreneurship, content strategy, or you want a behind-the-scenes look at one of the fastest-growing health apps in Europe, this conversation is packed with insights.
Watch until the end to hear Symmetry’s 10-year vision and how Mauro plans to build the “G-Suite of self-development.”
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📌 Topics Covered:
0:00 – Mauro’s story
3:00 – The YouTube launch & transformation
7:00 – How Symmetry was built
12:00 – 450K downloads with no ads
18:00 – UGC vs influencers
20:00 – AI features and growth
27:00 – Leadership at 21
33:00 – The future of fitness + AI
40:00 – Symmetry’s 10-year vision
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