
Adaptive programming
A hybrid rules + AI system that tunes load, volume, and RPE every session to your 45+ physiology and commitments.
The strength training companion built for the body that changes after 45.
Private coach at $1,500-$15,000/year, then drop-off after three months.
Generic apps designed for 25-year-old bodies.
YouTube programs that ignore your physiology and joints.
This time, your companion doesn't let go. PrimeSets evolves with every session based on your sleep, recovery, and executive schedule — no human to answer to.
The science of 45+ resistance training
For 45+ professionals who manage their body like an asset. Three 45-minute sessions a week. Metrics, not instincts. The evidence: rebuilding muscle, metabolic health, and cognition past 45 requires resistance training — alongside aerobic work, not replacing it.
−3 to −8%
Lean mass lost per decade · accelerating past 50
×2
Rate of decline roughly doubles past age 50
Skeletal muscle stays adaptable past 50, but anabolic resistance raises the stimulus threshold. Enter earlier, compound longer.
Breen & Phillips, Nutr Metab, 2011 · Mitchell et al., Front Physiol, 2012
Lock in your founder rate before launch. This price will not be offered after public release.
billed monthly
The essential app, without adaptive AI. Exercise library, base programs, load journal.
billed monthly
Founder: $59/month for life
The full companion. Adaptive programming, vision nutrition, recovery, travel mode.
billed monthly
Founder: $99/month for life
Two Premium accounts for a 45+ couple. Shared progression, cross-partner accountability, synced travel mode.

Every program validated in code. Capped intensity, joint protection, plateau detection before you feel it.
Your physiology is neither that of a thirty-something nor of a senior. Volume, intensity, and recovery tuned to your decade.
Every adaptation is explained. Why this load, why this deload, why this substitution — you see the reasoning, not just the prescription. Decision-makers don't accept black boxes.
Join the 100 founders before May 18, 2026. $59/month locked for life, TestFlight beta access before the App Store release.