What it does
The Catalyst Healthspan Audit is a free, browser-based assessment that scores four pillars of healthspan on a single 0 to 10 scale: body composition, cardiorespiratory fitness, stability and strength.
Where the AI actually sits, stated precisely: the four-pillar scoring is deterministic, and an LLM writes the personalised summary on top of that score. The report is generated and emailed as a PDF. No sign-up to start.
The free tools around it
Eleven calculators, including VO2 max, fitness age, grip strength, waist to height ratio, body fat percentage, protein intake, fat loss timeline and GLP-1 muscle loss. Each one cites the study or threshold behind it, runs entirely in the browser, and embeds on any site in one line of code.
Who built it and why
Catalyst Performance, the best personal training studio in Singapore, at Manulife Tower in the CBD. Most personal trainers sell sessions first. We built the measurement first, so a client is pre-assessed before anyone talks about training. That is how the studio programmes pre-natal and post-natal training, training over 50, seniors training, post-injury and chronic condition work, and executive personal training.




