Perimenopause intelligence for Apple Watch
Perimenopause symptoms hiding in plain sight. Your Apple Watch has the evidence. PeriClue reads it.
No new hardware. Works with the watch you already own.
See how it works
What's happening
You've noticed it. Sleep that doesn't restore. Energy that disappears mid-afternoon. A recovery score that says “great” when you feel anything but. You're not imagining it, and it's not just stress. It's perimenopause — and the generic algorithms in your health apps weren't built to see it.
Your Apple Watch has been collecting the evidence the whole time. It just wasn't designed to interpret it through a hormonal lens. PeriClue is.
Same watch, different intelligence
Your Apple Watch already collects what matters: heart rate variability, sleep stages, recovery metrics. PeriClue adds the intelligence layer that's missing — perimenopause-calibrated engines that connect your sleep architecture, cycle phase, medications, and personal baselines. No new hardware. No wearable subscription. Just software that makes the watch you own dramatically smarter.
Where a standard app sees “4 awakenings” and moves on, PeriClue asks: when did they happen? How did they fragment your deep sleep? Were you in the luteal phase? Does this match the pattern from your last three cycles?
9 domains, one engine
Your brain fog on Tuesdays. The sleep disruption that follows a specific phase of your cycle. The correlation between this week's training load and tomorrow's fatigue. These patterns exist in your data already — scattered across apps that don't talk to each other and weren't built for perimenopause.
PeriClue connects sleep, recovery, activity, cycle, symptoms, nutrition, supplements, labs, and weather in one system. 26 pattern detectors run continuously across all nine domains, surfacing the cross-domain correlations you'd never spot on your own — like how barometric pressure tracks with your migraine frequency, or how your supplement timing affects HRV trends.
Sleep. Recovery. Activity. Cycle. Symptoms. Nutrition. Supplements. Labs. Weather. All connected, all cycle-aware, all calibrated to your personal baseline. Powered by your Apple Watch.
01
Sleep architecture. Recovery depth. Activity load. Adaptive bedtime. Cycle tracking. Symptom journaling. Nutrition. Supplements. Labs. All connected in one system, all informed by your cycle phase, all calibrated to your personal baseline — not a population average built for athletes. Works with your Apple Watch. No new hardware.
02
Generic health apps score you against a population average. PeriClue builds a personal baseline from your own data, then adjusts for where you are in your cycle, your medications, and your health conditions. Your HRV the week before your period means something different than the week after. A 3am awakening in the luteal phase means something different than one in the follicular. PeriClue knows.
03
26 pattern detectors run continuously across all nine health domains. Brain fog triggers. Sleep fragmentation trends. Energy-cycle correlations. Supplement effects on HRV. Weather-migraine connections. Cross-domain patterns that no single-purpose app can find — because no single-purpose app has all the data in one place. PeriClue does.
04
Ask PeriClue why you're exhausted, and it reads your sleep architecture, HRV trends, activity load, cycle phase, supplement schedule, and symptom history. All at once. It builds protocols you can track, runs N=1 experiments with before/after analysis, and grounds every response in peer-reviewed perimenopause research. Not a chatbot with health tips. An AI health companion with 9 domains of your data and 17 specialized tools.
05
Every recommendation becomes a trackable personal experiment. Not just “try magnesium” — a structured N=1 trial spanning full cycle lengths, with daily adherence logging, auto-tracked sleep and HRV, and an AI-generated completion analysis. Labs uploaded and parsed. Doctor notes turned into trackable protocols. Supplement changes proposed with dosage, timing, and measurable outcomes.
No new hardware. No wearable subscription. Just software that connects 9 health domains through a hormonal lens. Join the waitlist for early access.
Every algorithm, every threshold, every cycle-phase adjustment traces back to published, peer-reviewed research — SWAN, Penn Ovarian Aging, STRAW+10, and more.
A 2026 global study of 17,494 women across 158 countries found that the #1 health complaints aren't the ones most apps track. Exhaustion (95%), fatigue (93%), and irritability (91%) top the list. Most health apps weren't built for that. Periclue was. Our scoring engine prioritizes sleep fragmentation, recovery depth, and energy patterns, because the research says those matter most.
Periclue does not diagnose. It contextualizes your health data and surfaces patterns worth paying attention to. When something looks concerning, it encourages a conversation with your healthcare provider, not a self-diagnosis.
Most health apps fund their business by selling your data to advertisers and insurance companies. Periclue doesn't. Your HealthKit data is never sold, never shared, and never used for ads.
Research-backed insights on what your data really means.
You've been exhausted in a way sleep does not fix. Your brain does things it never used to do. Your doctor says everything looks fine. Here is what nobody has told you yet.
The worst part wasn't the symptoms. It was the months of not knowing why they were happening.
You slept 8 hours but feel terrible. The problem isn't how long you slept. It's how many times you woke up.
Shipped fast. Improving faster. Every feature below works with your existing Apple Watch.
See why you wake up tired, even after 8 hours
Your sleep, recovery, and activity scored together
An AI health companion that actually knows your data
26 detectors running across your health data continuously
Menstrual cycle awareness woven into every score
Heart rate zone scoring calibrated for women
Bedtime recommendations that adjust to your week
Snap a photo. Get instant nutrition breakdown
Upload labs, AI extracts the findings that matter
Automatic nap scoring with personalized coaching cards
Know the moment your recovery shifts
Walk into your appointment with data your doctor can use
See your health trajectory over weeks and months
Smart scale integration for the full picture
See how glucose patterns connect to energy and sleep
Your Oura data, scored through the Periclue lens
Share your health journey with someone who cares
Yes. PeriClue is software that connects to Apple Health and reads data from your Apple Watch. No additional hardware needed — no ring, no band, no wearable subscription. Just the watch you already own.
Your Apple Watch collects great data but interprets it using generic algorithms built for athletic recovery. The symptoms women actually report most during perimenopause (exhaustion, brain fog, broken sleep) aren't things most health apps even measure. PeriClue is an intelligence layer that reads the same Apple Watch data through a perimenopause-calibrated lens — connecting sleep architecture, cycle phase, medications, supplements, labs, and symptoms across 9 domains. It builds your personal baseline, runs 26 pattern detectors continuously, and surfaces the cross-domain correlations generic apps miss entirely.
No. PeriClue works with passive Apple Watch data alone. Logging symptoms like hot flashes, mood, or energy improves AI insights but is completely optional.
Your data stays yours. It is never sold, never shared with advertisers, and never used for anything other than generating your personal health insights. AI conversations use zero-retention processing. You can request full data deletion at any time.
Any AI can answer health questions. PeriClue is different because it's a perimenopause health system with an AI companion inside. Nine domains of your data — sleep, recovery, activity, cycle, symptoms, nutrition, supplements, labs, weather — all connected in one place. The AI doesn't just read it. It has 17 specialized data tools, tracks your baselines across cycles, runs structured N=1 experiments, builds protocols with measurable outcomes, and grounds every response in peer-reviewed perimenopause research. No general-purpose AI does that.
No. PeriClue is a wellness tool, not a medical device. It contextualizes your data and flags patterns worth paying attention to. When something looks concerning, it encourages a conversation with your healthcare provider.
iOS beta is live now with early access users. Public App Store launch: Spring 2026. Android follows.