All work

Hot flash diary

Glasyn

Log a hot flash in two taps, see your own pattern, and take a one-page summary to the doctor.

Where it runs

iPhone
live

Since June 2026

Its own page

glasyn.appGlasyn, a capture of the product's own page
The Today screen: how many hot flashes today, the daily check-in, and the button to log one
Insights: when the flashes happen, how many at night, how many woke the person
The doctor report: a one-page summary with the episode counts and the most noted triggers

Who it is for

People logging hot flashes who want their own record, and something clear to show in a short appointment.

What it does

  • An entry in two taps: the button and how strong it was. A note or a trigger only if you want one.
  • Shows the pattern: day or night, how many woke you, which triggers keep coming up.
  • An optional daily check-in: mood, sleep, aches, foggy thinking.
  • A one-page PDF for the doctor, with a CSV of the raw entries if they want the detail.

Business model

Logging is free and unlimited; the doctor report and the full insights come with a monthly, yearly or one-time purchase.

It is a personal diary, not medical advice: it does not diagnose, treat, or say anything about menopausal status.

What is hard to copy

Two taps, at the worst moment

The entry is made while the person is hot and uncomfortable. So the main screen is one button and a strength, and everything else, notes and triggers, stays optional.

The report is the product

An appointment lasts minutes. Weeks of entries become one page: how many episodes, day and night, how many woke the person, the most noted triggers, and what they wrote themselves.

Nothing leaves the phone

There is no account and nothing is uploaded. The App Store privacy label says data is not collected, so there is nothing to leak or to sell.

Why it is built this way

Health and fitness, not medical

The category was chosen deliberately: the app diagnoses nothing and says nothing about menopausal status, so it stays a diary rather than a medical device.

The daily action never hits a paywall

Logging is free and unlimited. The payment is for the doctor report and the deeper patterns, because those are what is needed before an appointment.

The name was picked for clearance

The first names were Emberly and Niora. Both were dropped after checking the App Store and company names, and Glasyn was picked because nothing else carries it.

Have something like this in mind?

Tell me what it should do. On a 30 minute call we work out whether it is worth building and what the first version needs.