Peri LogLog in
A doctoral research study

A 90-day companion for understanding perimenopause

Track your symptoms in one minute a day, get gentle self-care guidance matched to what you’re experiencing, and watch your own pattern emerge — as part of a research study on perimenopausal symptom self-management.

Create accountLog in

Your details are private and used only for this research study.

Peri Log open on a phone, showing the home screen with today's check-in complete, quick links to symptoms, library and progress, and a daily reminder card
Day 1One minute a day, for 90 daysDay 90

How it works

No appointments, no equipment — just your phone, and a minute of noticing how you feel.

A one-minute daily check-in

Each day, record how you're feeling and which symptoms showed up — mood, sleep, hot flashes, and more.

Guidance matched to your symptoms

Simple, practical self-care for each symptom — what helps in the moment, in your diet, and in daily life.

Your 90-day picture

Watch your calendar fill and your symptom pattern take shape — your own experience, made visible.

Keep it on your home screen

Peri Log works like a regular app — no app store needed. Save it once and it opens full-screen with its own icon, remembers you, and your daily check-in is one tap away.

iPhone — Safari
  1. Open perilog.in in Safari
  2. Tap the Share button
  3. Choose Add to Home Screen, then tap Add
Android — Chrome
  1. Open perilog.in in Chrome
  2. Tap Install when it appears — or the menu
  3. Choose Add to Home screen

Your data, your choice

The same commitments you’ll see in the consent form — in plain words.

Private by default

Your responses are stored securely on encrypted servers in India and used only for this research.

No ads, ever

Nothing is sold, shared with third parties, or used for advertising. This is research, not a product.

Withdraw anytime

Participation is voluntary. You can leave the study at any point, from inside the app, without giving a reason.

Common questions

What is Peri Log?
Peri Log is a mobile web app for tracking perimenopausal symptoms over 90 days. It combines a one-minute daily check-in with self-care guidance for nine common symptoms, and it doubles as the data-collection instrument for a doctoral research study.
What is perimenopause?
Perimenopause is the natural transition phase before menopause, usually starting in a woman's 40s, when shifting hormone levels can bring symptoms like hot flashes, disturbed sleep, mood changes, and joint aches. It's a normal stage of life — and tracking it daily helps you understand your own pattern.
Who can join the study?
Participation is by invitation from the research team. If you've been invited, create your account with the details you shared with the researcher, read the consent information, and you're ready to begin your 90 days.
Is my data private?
Yes. Your responses are stored securely, used only for this research, and reported only in anonymised, aggregate form — nothing published can identify you. You can withdraw at any time from inside the app, and no further data is collected after you do.
Do I need to download it from an app store?
No. Peri Log runs in your browser and can be saved to your home screen — no app store, no downloads, no updates to manage. See the steps above.