What it does
The Catalyst Healthspan Audit scores four pillars of healthspan on one 0 to 10 scale: body composition, cardiorespiratory fitness, stability and strength. The scoring is deterministic, and an LLM writes the personalised summary on top of it. Free, no sign up, report emailed as a PDF.
The free tools around it
Eleven calculators including VO2 max, fitness age, grip strength, waist to height ratio and GLP-1 muscle loss. Each cites the study behind it and embeds on any site in one line of code.
Who built it
Catalyst Performance, a personal training studio in Singapore. Most trainers sell sessions first; we built the measurement first, so clients are pre-assessed before anyone talks about training.

