Your fitness app is giving you
a man's workout plan.
Kyronix is the first health app built around your hormonal profile — not a generic template. Natural cycle, OC user, perimenopause, or postmenopause: your biology gets its own playbook.
One size fits none.
Kyronix adapts to where you are.
Most apps treat every woman the same. Kyronix starts by identifying your hormonal context — because a 28-year-old on day 12 of her natural cycle has completely different needs than a 50-year-old in perimenopause.
Premenopausal Natural Cycle
Regular periods with natural hormonal fluctuation. Recommendations adapt to each phase — follicular, ovulatory, luteal, and menstrual.
Hormonal Contraceptive User
Hormonal contraceptives suppress the natural cycle and alter estrogen/progesterone baselines. Kyronix adjusts recommendations for your blunted hormonal environment.
Perimenopausal
Irregular cycles, fluctuating estrogen, and emerging symptoms like hot flashes and disrupted sleep. This transition demands its own framework — not a younger woman's plan.
Postmenopausal
Permanently lower estrogen changes cardiovascular risk, bone density, muscle maintenance, and metabolic health. Recommendations shift to long-term resilience.
Every recommendation has four layers.
Tap to see the reasoning, the science, and the source — or just follow the card. You decide how deep to go.
Schedule your hardest workout today — this is your peak performance window.
Click “Why”, “Science”, or “Source” to expand each layer.
We use athlete-level thresholds,
not just lab floors.
Standard lab ranges are set to identify disease — not optimize performance. Kyronix applies evidence-based functional thresholds so you can catch sub-clinical deficiencies before they become problems.
Up to 60% of active women are functionally iron deficient even with a 'normal' result. Sub-optimal ferritin reduces VO2 max, impairs HRV recovery, and amplifies fatigue.
The clinical minimum is not the performance optimum. Higher 25(OH)D levels are associated with better muscle function, immune resilience, and reduced injury risk.
RDA was set for sedentary adults, not active women. At 2× the RDA, active women preserve lean mass, support hormonal synthesis, and reduce muscle breakdown.
Thresholds based on peer-reviewed literature (2018–2025). Individual needs may vary. Consult your healthcare provider before supplementing.
Built on evidence, not wellness trends.
Every recommendation traces back to a published, peer-reviewed source. Here are five of the foundational studies:
Your biology deserves a first-class plan.
Upload your DNA file. Connect Apple Health. Set your hormonal profile. Kyronix does the rest — adapting every recommendation to where you are, not where a generic algorithm thinks you should be.
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