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Rubén López flexing, his Olympic rings tattoo visible, holding a WarmApp jersey

Our Story

BUILT BY
CHAMPIONS

Where Olympic gymnastics expertise meets Stanford engineering

Our Mission

Make elite gymnastics coaching methodology accessible to every coach. Reduce the friction of programming so coaches can focus on what they do best: coaching. The same system used to develop Olympic medalists and World Champions, now working alongside you.

Rubén López, Olympic gymnast and WarmApp co-founder, in a Stanford coaching polo

Co-Founder & CEO

RUBÉN LÓPEZ

Rubén is an Olympic gymnast with 15 years of elite training experience, now Associate Head Coach of the Stanford Men's Gymnastics program. As a coach, he has developed World Champions, Olympic medalists, and NCAA champions. His training methodology, refined at the highest levels of international competition, is the foundation of every WarmApp program. From periodization to skill progression, every detail reflects years of elite coaching expertise.

Olympic Gymnast
15 years professional athlete
Stanford Associate Head Coach
Coach of World & Olympic medalists
Coach of multiple NCAA champions
Jeremy Bischoff, USA National Team gymnast and WarmApp co-founder, in a Stanford polo

Co-Founder & CTO

JEREMY BISCHOFF

Jeremy is a former USA National Team member, 4× NCAA Champion, and Stanford computer science graduate. He built the technology and systems powering WarmApp, combining world-class athletic experience with Silicon Valley engineering.

USA National Team Member
4× NCAA Champion
Stanford-trained Software Engineer
Stanford National Championship team
Rubén López headshot
Jeremy Bischoff headshot

THE STANFORD CONNECTION

Rubén and Jeremy met at Stanford, where Rubén coached Jeremy and the Cardinal to an NCAA national championship in 2024. One was an Olympic gymnast and elite coach from Spain, the other a USA National Team gymnast studying computer science. Together, they shared a vision that elite gymnastics coaching methodology shouldn't be locked behind closed doors.

WarmApp is the result. The same programming system used to develop World Champions and Olympic medalists, now accessible to every coach. World-class gymnastics expertise meets technology built out of Stanford.

OUR VALUES

What drives everything we build

Methodology First

Every workout is grounded in structured gymnastics coaching methodology, not generic fitness templates. The AI builds from the same system behind World Champions.

Trust Over Hype

We'd rather be the tool coaches rely on quietly than the one that overpromises. If the AI recommends an exercise or a specific methodology, it can explain why.

Expert System

Curated by an Olympic gymnast, not crowdsourced. Coaches trust the system because the methodology is real, tested, and transparent.

Education as Value

WarmApp doesn't just generate workouts. It explains the reasoning behind every prescription to the coach. Coaches call it 'graduate gymnastics school.'

Built for Coaches

Purpose-built for the people who program workouts, not a generic fitness app with AI bolted on. Every feature solves a real coaching problem.

Simplicity

As little design as possible. One AI colleague, one workflow, one place for everything. Complexity is the enemy of coaching.

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