Bloom — it finds the patterns in perimenopause

The problem is memory

Was the brain fog worse this month or last? Do the night sweats follow the stressful weeks, or the wine, or neither? Has the joint pain always come in the last week of the month — or does it just feel that way?

These are pattern questions, and human memory is genuinely bad at them. It smooths over the details, overweights the last few days, and quietly rewrites the rest. That's why perimenopause feels random from the inside — the signal is spread across too many weeks to hold in your head.

Write it all down, consistently, and let something else do the remembering.

How Bloom finds your patterns

Every day you log becomes a data point. Bloom runs your history through six different lenses, each designed to catch a kind of pattern that hides from memory:

Same-day and next-day effectsFor every lifestyle factor — alcohol, caffeine, short sleep, stress, exercise, morning walks, office days, each supplement — Bloom compares your symptom severity on days with it against days without it, both the same day and the day after.

Effects that build upSome things are harmless once and costly in a row. Bloom compares single days of a habit against two-or-more consecutive days, catching the effects that only appear when something accumulates.

Week against weekEach symptom's last seven days are held against the seven before — so a slow slide or a quiet improvement is flagged before you'd notice it yourself.

Monthly rhythmsHormonal cycles often keep a monthly beat even when periods are irregular or gone. Bloom compares the early, middle and late parts of each month — no period data required. If you do log bleeding, it also analyses the week before each period.

Month against monthThirty days against the thirty before — the long, slow trends that define whether things are getting better or worse overall.

Weekday and weekendRoutine-driven patterns — the ones that follow your calendar rather than your hormones — show up here, and help separate work effects from body effects.

What a finding looks like

"Hot flashes tend to be worse (+1.2) the day after alcohol."— same-day / next-day comparison, shown with how many days of evidence it rests on

"2+ days in a row of short sleep: overall symptom load averages 9.1 vs 5.4 after a single short night."— build-up detection

"Brain fog tends to be strongest in the late (21st–end) part of the month."— monthly rhythm, works without period data

Every finding states its evidence, and nothing appears until there's enough data to mean something. These are observations, not instructions — what you do with them is yours to decide, ideally with your doctor.

Patterns need data — so logging is fast

The analysis is only as good as the diary beneath it, which is why Bloom's daily entry is built to survive real life: everything is a tap, a full day takes well under a minute, and you can skip anything.

MoodOne five-point rating to open the day.

Symptoms, 0–4Your five most frequent stay on top; the rest fold away. Add your own if something's missing.

LifestyleSleep, stress, alcohol, caffeine, exercise, routines — all quick chips.

Supplements & foodTick what you took; add food notes only when something stands out.

Private by design

Pattern-finding this personal should stay personal. Bloom has no servers, no account, no analytics and no third parties — everything you log lives only on your phone, and a one-tap export gives you your full history as a file for backup or for bringing to an appointment.

Getting Bloom

Bloom is free and installs directly, outside the app stores. Android only, for now.

Download the app using the button below, on the phone you want it on.
Open the downloaded bloom.apk file.
Android will note that the app comes from outside the Play Store — expected for directly-shared apps. Choose Settings → Allow from this source, then Install.
Log your first day. The first patterns typically appear after ten days or so.

Download Bloom for Android

Bloom is a personal tracking tool, not a medical device, and nothing it shows constitutes medical advice. If symptoms concern you, speak to a doctor — your Bloom patterns can make that conversation more productive.