A record your clinician can actually use
HormoneLog is a record, not an assessment. What you take, at what dose, since when, what changed — logged against how you actually felt, in a form you can hand to a clinician at a review appointment.
It exists because of a specific gap. Consumer trackers in this category log medication the way they log a symptom: a tick on a day. Prescriber platforms manage prescriptions without being self-tracking tools. Nothing in the mainstream consumer category models HRT as a regimen over time — which is exactly the record you need when you are titrating over months and the useful question is what changed after the change.
HormoneLog is in development and not released. Everything on this site is free, needs no signup, and works whether or not the app ships.
Free, right now, no signup
What HormoneLog will do
Log an HRT regimen properly. Not "took my medication today" — but what, at what dose, in what formulation, since when. And critically, what changed and on what date, because the entire value of the record is the before-and-after around a change.
Put symptoms and treatment on the same timeline. A dose change eight weeks ago and what happened in the eight weeks since, visible together.
Produce an appointment summary. One page, ordered by what is bothering you most, that you can print or hand over. The 2023 systematic review found most apps in this space had no mechanism for sharing data with a provider or exporting structured records — which is strange, given that preparing for appointments is a main reason people track.
Keep records on your device. Local-first by design. In this category that is not a marketing line: the same review found 32 percent of the apps it assessed indicated third-party data sharing.
Be readable. Large type, high contrast, real dark mode — as a design constraint rather than a settings screen. The same review found average readability across menopause apps sat at a college-graduate level, and accessibility complaints against incumbents are common.
What HormoneLog will not do
These are constraints, not disclaimers.
- It does not diagnose. Not perimenopause, not anything.
- It does not calculate or recommend doses. It records what you were prescribed.
- It does not display a severity band. Published cut-offs come from research populations, and showing your number against them is an assessment. This is not an assessment tool.
- It does not implement either of the two best-known licensed menopause symptom scales. Both are licensed. HormoneLog uses its own Symptom Burden Index over the same clinical domains — vasomotor, psychological, somatic, urogenital — which are clinical categories rather than anyone's property.
- It is not described as validated. The instruments are validated. This app is not.
How this site is written
Every claim links to a primary source. Where sources conflict, both are given and the conflict is named — for example, the 21-item scale's licence holder and a NIH-funded toolkit take contradictory positions on whether that instrument requires permission, and we are not going to resolve that by choosing the answer that suits us.
Where a widely-repeated claim is wrong, it is corrected: NICE NG23 does not recommend symptom diaries, and the "28 apps averaged 3.1 out of 5" statistic does not appear in the review it is usually attributed to.
Information, not medical advice. Nothing here diagnoses or treats any condition and none of it substitutes for a consultation with a clinician. HormoneLog is not affiliated with, endorsed by, or licensed by any organisation named on this site.
Questions and answers
What is HormoneLog?
HormoneLog is an iOS app in development for logging perimenopause and menopause symptoms alongside an HRT regimen - what you take, at what dose, since when, and what changed - so that a review appointment starts from a record instead of from memory.
Does HormoneLog diagnose menopause?
No. HormoneLog does not diagnose anything, and no app can. Diagnosis is a clinical judgement. NICE NG23's position is that in women over 45 with typical symptoms it is made on symptoms rather than blood tests.
Does HormoneLog use a licensed menopause symptom scale?
No. The two best-known ones in research are both licensed instruments, one with no published fee tier covering a commercial consumer app and the other requiring contact for commercial licensing. HormoneLog uses its own Symptom Burden Index over the same clinical domains.
Is HormoneLog validated?
No, and we will not use that word about it. The published instruments in this space are validated. This app is not, and the licence holder of the 21-item scale notes that even that instrument was validated only for paper administration with digital adaptations not validated.
How much will HormoneLog cost?
HormoneLog is free. There is no subscription and no price tier - logs stay on the device, so there is no ongoing per-user cost to charge for. It is in development and not yet released.
Will my data stay on my phone?
That is the design intent - local-first storage so records stay on the device. It matters in this category specifically: a 2023 systematic review of 28 UK menopause apps found 32 percent indicated third-party data sharing.
HormoneLog. “A record your clinician can actually use.” Baker Ventures LLC, September 6, 2026. https://hormonelog.bakerventuresstudio.com/