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Broadest hormone panel at home comfort
Four reproductive hormones — LH, FSH, E1G, PdG — in one kit. Built for the full female cycle picture, not a single window.
Coming 2028
Start reading your body.
Understand your hormone fingerprint.
Women's Health Ally (Whally) pairs an at-home four-hormone test with a free cycle app — so you see the pattern across cycles, not just a snapshot of one day.
CE-IVDR in progress·Dutch product·App permanently free
The gap today
Cycle apps logs symptoms.
Blood tests give one number.
Strips test limited event.
None of that is the picture.
Women have inherited a patchwork: trackers without biological signal, lab panels frozen to a single morning, and ovulation strips built for one question at a time. The body is a continuous system. The data should be too.
The Whally difference
Three principles. No compromises.
What makes Whally different from a strip, a lab panel, or another tracker — distilled.
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Most testing opportunity per cycle
Test on the days that matter for your question — fertility, ovulation, luteal health, perimenopause signals — across full cycles.
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No paywall on the data that's yours
The app is free. Your hormone history, cycle intelligence, and personal patterns stay accessible — no premium tier.
Your hormonal fingerprint
Patterns are the answer.
Snapshots are noise.
One hormone reading is a coordinate. Four hormones across one cycle is a shape. Four hormones across several cycles is your fingerprint — the recurring pattern that tells you what your body does, not what it did once.
Whally reads the pattern, then surfaces what's stable, what's shifting, and what's worth a conversation with a clinician.
Typical ovulatory cycle
LH FSH E3G PdG
Typical ovulatory cycle · ranges vary by person
Insights enabled
What your hormone pattern can tell you.
Across cycles, the same questions surface again and again. Whally is built to answer the right ones — clearly, and with the limits stated.
- Cycle intelligence and personalised pattern recognition
- Fertile-window detection and conception planning
- Ovulation vs anovulation classification
- Luteal phase defect signals
- Low ovarian reserve indicators
- Perimenopause and menopause onset signals
- PCOS and endometriosis patterns
- Estrogen dominance signals
Whally provides meaningful, actionable insight — not a medical diagnosis. We guide you to qualified clinical follow-up when relevant.
How it works
Three steps. Ten minutes.
Step 01
Test at home
Take the at-home test in under 10 minutes. CE-IVDR designed for accuracy and simplicity.
Step 02
Scan with the app
Photograph the cassette. The app reads it instantly using on-device computer vision. Your data stays on your device.
Step 03
See the pattern
Across cycles, your hormonal fingerprint builds. Cycle intelligence, personalised to you.
Why Dutch women, why now
A Dutch product,
for women who've waited long enough.
80% of Dutch working women report hormone-related health complaints. 39% say it impacts their work. The infrastructure to actually understand those complaints hasn't existed at home — until now.
Source — TNO 2025 factsheet on women's hormonal health in the Dutch workforce.
80%
of Dutch working women report hormone-related health complaints.
CE-IVDR in progressGDPR-firstDutch product
In the lab
Eighteen months at the bench,
so your reading is never a guess.
Whally didn't start as an app. It started as a question on a lab notebook — can four hormones be read accurately, at home, from a single sample? Answering it took 1.5 years of strip chemistry, antibody tuning and read-after-read validation against reference assays.
Every faint line on these pages was scored by hand, twice, by the same scientists who designed the cassette. We didn't ship until the pattern held — cycle after cycle, strip after strip.
18 moof R&D before a single kit shipped
4hormones validated together, not in isolation
2×hand-scored — every strip, by the team that built it
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A note from the founder
“I started Women's Health Ally (Whally) because women have limited access to their own biological data and pattern. The limited data women get about their own bodies hasn't matched the question they are asking. Apps help us to track cycles and log what we feel. Tests measure one moment. Neither of those is the story. Whally is built to give you the story — the pattern your body actually has — at home, on your own terms. Women should have the power to understand and take control of their body! They just never had the right tool...”— Pelin, Founder of Women's Health Ally
Dutch launch · 2028
Be on the list for Dutch launch.
Early waitlist members get priority access, founder updates, and a launch-day discount on the 3-cycle Hero bundle.
We email rarely. You can leave anytime. GDPR-compliant by default.
FAQ
Questions, honestly answered.
Q1 2028 in the Netherlands, with EU markets following on a rolling basis. Launch timing is gated on CE-IVDR certification — we will not ship a regulated device before it is properly certified.
Yes — permanently. There is no premium tier and no upsell inside your hormone history. The data you collect with your body stays accessible to you.
No. Whally provides meaningful, actionable insight into your hormonal patterns. When the pattern suggests something that warrants clinical attention, the app surfaces it and points you toward qualified follow-up — it does not replace your clinician.
GDPR-first, EU-hosted infrastructure. Cassette photographs are processed on-device via computer vision so the image itself never leaves your phone. Full data export and full deletion are one tap away, at any time.
LH (luteinising hormone), FSH (follicle-stimulating hormone), E1G (an estrogen metabolite), and PdG (pregnanediol glucuronide, a progesterone metabolite). Together these four build a complete cycle picture.
Class B certification under EU regulation 2017/746 is currently in progress. The product will not be available for purchase before certification is granted — that is a hard line for us.