Nar: Hormones & Whole Health

Nar: Hormones & Whole Health

Reads you, cycle to menopause

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  • Released
  • Updated
  • May 9, 2026
  • July 14, 2026

Features

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About

Nar reads your body twice a day, once in the morning and once at night, from what your wearable already knows and from what only you can tell it. Most health apps were built on men's physiology and later adapted for women. Nar starts from women's data. That is why it can read the stages that the charts in other apps do not reach. Postpartum. Perimenopause. An irregular cycle, or none at all. Hormonal contraception. Post-menopause. Nar is for women who want to work with their body rather than against it. WHY YOUR NUMBERS KEEP LYING TO YOU A resting heart rate of 62 is not one fact. It means one thing in the week before your period and another in the week after. It means something different again four months after giving birth, and different again in the years the cycle starts to loosen. Most apps compare you to a population average and call the difference a problem. Nar compares you to you, at this point in your cycle and at this stage of your life. A luteal temperature rise reads as the luteal phase, not as illness. A postpartum HRV of 25 reads as postpartum, not as alarm. WHAT NAR READS Apple Health, on any iPhone. Anything already flowing into it, including Apple Watch and Oura. No wearable at all? Logging is enough. Nar reads what you give it, and tells you what it can and cannot see. WHAT NAR GIVES BACK Two reads a day. A morning brief, and an evening read. Eight domains: Sleep, Energy, Mood, Body, Gut, Pain, Immunity, Heart. Each one read through your hormonal stage, because the same number means something different in a different body, and in a different week. Personal baselines rather than population norms. Your normal, not the average woman's. One thing to change today, drawn from what your own data is doing. Not a protocol. Not a streak. Not a score to chase. Where you are in your cycle or your stage, shown plainly, without pastel flowers. THE SCIENCE Three layers, all of them running on your phone. Rules built from the clinical literature on women's physiology, calibrated against labelled research datasets. A neural network trained on 71 million rows of women's health data, small enough to live entirely on your device. Your own baselines, which sharpen every day you use it, until Nar knows your normal better than any average could. PRIVACY Everything stays on your device. There is no Nar server. We could not read your data if we wanted to, because it never reaches us. If you sign in with Apple, only your onboarding profile travels through your own private iCloud. Never your readings. BLOOM Bloom is the reason behind the reading. Why this, why today, and what in your own data says so. It adds multi-day patterns, a push when something shifts, and your last twenty four hours at a glance. £4.99 a month or £39.99 a year. 30 days free for new subscribers, then auto-renews until canceled in iPhone Settings. Annual saves 33%. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://narwomenshealth.com/privacy
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What's New in Nar

4.1.1 (237)

July 14, 2026

Nar now reads your body against the phase you are actually in. -Phase-aware scoring Until now, your signals were compared to a baseline that did not know where you were in your cycle. Temperature, heart rate variability, respiratory rate and resting heart rate all shift predictably across a cycle, and reading them flat meant reading them wrong. Each of those four is now compared to what is normal for you at this point in your cycle rather than to your average. A luteal temperature rise now reads as the luteal phase, not as illness. Immunity is scored on phase-residualized temperature. Body carries a wider tolerance through the luteal phase, where a heavier, slower day is the expected thing rather than a warning. The on-device model behind your cards was retrained on these phase-aware signals, so what the model says and what the card says now agree. -A cortisol lens Nar now infers your HPA-axis load: not the stress of any single day, but the slow load your body has been carrying across days. Where it is high, it informs what Gut, Immunity and Pain have to say, because that is where a long stress load surfaces first. It is inferred from the signals you already give Nar. Nothing new is asked of you, and no number is put in front of you. -Menopause staging If you are in the transition, Nar can now propose where you are, following the STRAW+10 criteria used in the research literature. Perimenopause hosts the twelve-month count. Menopause is the marker reached at the end of it, not the years leading up to it. Nar proposes a stage. It never diagnoses one, and you can always tell it that it is wrong. -Corrections Blood oxygen was being read at the wrong scale, and Apple Watch skin temperature was being read as an absolute rather than as a deviation from your own normal. Both are fixed. Both were quietly moving your scores. A cycle now begins only when you log a bleed. Nar no longer assumes one has started. Cards in different domains had begun to rhyme with each other, reaching for the same phrasing on the same morning. They no longer do. The hormonal Why sheet now shows the evidence it was always meant to show. Everything stays on your device.

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