Now in early access

You optimize everything.
Your fertility is next.

Fero is the first male fertility intelligence platform — tracking sperm health, hormones, and lifestyle continuously across your 74-day biological cycle.

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What you get when you join

Priority access to the app at launch (Q4 2026)

Founder updates on our science and progress

Priority pricing — locked in before public launch

The Problem

Half the equation.
None of the attention.

Fertility is framed as a woman's issue. The science says otherwise — and the tools have never caught up.

Women have

Flo. Natural Cycles. Clue.

A full ecosystem — continuous tracking, hormone intelligence, predictive insights. Built for proactive health.

Men have

One test. No context.

A single semen analysis, ordered reactively after 12 months of trying. No trends. No platform.

Now there's

Fero.

Longitudinal fertility intelligence for men. The gap, finally closed.

50%

of fertility challenges involve a male factor

12mo

before a man is clinically tested under current guidelines

proactive male fertility platforms built for the everyday man

How It Works

Built around your biology

Most health tools measure you in snapshots. Fero is designed around the 74-day spermatogenic cycle — the only timeframe over which meaningful change in fertility can actually be measured.

🔬

Why 74 days? Spermatogenesis — the process of producing mature sperm — takes 42–74 days from start to finish. A single test tells you where you are today. Fero tracks the full cycle, so you can see real change over time and understand what's actually driving it.

Test

At-home semen analysis and hormone panel kits deliver clinical-grade data without a clinic visit. Sperm count, motility, morphology, testosterone, LH, FSH, and more.

Track

Daily lifestyle check-ins — sleep, alcohol, stress, diet, exercise — build your continuous fertility picture. Connects with Oura and Whoop if you already use them.

Optimize

Your AI coach ranks the highest-impact lifestyle changes by your specific data and the clinical evidence behind each one. Personalized, not generic.

Repeat

Re-test at the end of each 74-day cycle. Measure real change. Watch your Fero Score move as your habits take effect — with the data to prove why.

The App

Your fertility intelligence, in one place

Test results, daily habits, and hormone data — connected into a single, continuous picture of your reproductive health.

Your Fero Score

A single composite score tracks your fertility across each 74-day cycle. See exactly what's moving your number — and by how much.

Full Biomarker View

All 16 markers across semen analysis, hormones, and lifestyle in one clean grid. Nothing hidden, nothing oversimplified.

AI Fertility Coach

Evidence-based recommendations ranked by impact on your specific data. Always cited. Always personalized.

Track every dimension of your health

Daily check-ins, your longitudinal journey, and smart lifestyle logging — all feeding your Fero Score.

Early Access

Be among the first.

We're building for men who don't want to wait until something's wrong. Spots are limited.

Early access opens Q4 2026 — join the waitlist now