About

Sexual performance is a trainable athletic quality. Almost nobody trains it.

iSexercise exists because the physiology is well documented and the training is not. Endurance, control, mobility, strength and mentality all govern sexual performance, all respond to programming, and all go untrained. We built the coach.

Take the free PQ assessment See the evidence

The team

Small, and hiring the two seats that matter

Brett Joseph

Founder

Entrepreneur and business development executive, with a background across sales, strategic partnerships, business development and legal work.

Director of Business Development, BoozBucks Corp.
International Marketing Consultant, Bonanza Nightlife, Tel Aviv
Master's in Management and Entrepreneurship, New York University
Formerly a licensed Financial Advisor, Oppenheimer & Co.

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Clinical Director

Hiring

This seat is open. If it is yours, write to us.

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Head of Growth

Hiring

This seat is open. If it is yours, write to us.

Headshots are placeholders — an on-brand monogram rather than a stock or generated face. Real photographs replace them as they arrive.

What we hold ourselves to

Honest numbers only: Every figure carries its source and, where it is an estimate, its confidence band. We publish the real energy cost of sex — 101 kcal for men, 69 for women — rather than the 300-calorie folklore.
A fitness product, not adult content: Instructional, never depictive. No photographic or suggestive imagery anywhere, at any point.
Privacy as architecture: Session data is local-first and end-to-end encrypted. We are not trusting ourselves to behave; we are making the data unreadable to us.
Never a diagnosis: PQ and SQ are fitness metrics. We do not diagnose, treat or cure anything, and we do not pretend otherwise to sound more impressive.
Capability, never shame: Everything is framed as a trainable capacity. Nothing on this site is designed to make a reader feel broken.