Private · local-first · for iPhone

Notice your own health patterns.

A calm, private journal for migraine, reflux, sleep, food and the weather around you — tracked together, so you can see how they line up over time.

  • No account
  • Data stays on your phone
  • No ads, ever
  • Free to start
Patternwise Today screen showing a gentle greeting, condition tiles and the day's log.

Try it

Logging takes seconds. See for yourself.

Living with a condition is effort enough — the diary shouldn't be. This is the real flow, right in your browser. Go on, log one.

What happened?

Tap one — the timer starts when you do.

How intense?

Severity is always labelled — never colour alone.

Saved

That's the whole thing. No forms, no login, no loading spinner.

In the app, the weather, barometric pressure and last night's sleep are captured automatically — so most days, this is all the effort a good diary takes.

Today

  • Your demo entries will appear here

Cross-condition view

The picture single-condition apps miss.

Most trackers follow one thing in isolation. Patternwise holds your conditions side by side on the same timeline — so when one tends to show up before another, you can see it in your own history.

Reflux Migraine MonTueWedThuFriSatSun MonTueWedThuFriSat Reflux appeared the day before 3 of these 4 migraines
Reflux logged Migraine logged Days that lined up

Illustration with example data. Patternwise shows you what you logged in the days around an entry — context to explore with your doctor, never a cause, a diagnosis, or a prediction.

Why Patternwise

Built for real life with a condition.

Made by one developer for his wife's migraines and reflux — then shaped by what actually survives months of daily use.

Several conditions, together

Migraine, reflux and any condition you define live side by side — so cross-connections can surface instead of hiding in separate apps.

Logged in seconds

Pick what and how intense — done. Food, sleep, stress and custom factors take a tap. You just tried it above.

Private by design

Entries are stored encrypted on your device and never uploaded. No account. Optional AI summaries run entirely on-device.

Gentle, honest insights

A calendar and frequency view, plus a look-back at what you logged around an entry — context, never a verdict. No predictions.

For you, or someone you care for

Keep separate private profiles for more than one person on the same phone — each with their own conditions and history.

Yours to keep

Export a clean CSV or a tidy PDF summary any time — to keep, or to bring to your doctor.

A calm place for hard days

Designed dark, soft and quiet.

The sage-green palette isn't a style choice alone — green is the light a migraine brain tolerates best, and the whole app avoids the harsh blues and whites that make bad days worse.

Insights calendar highlighting days with a logged symptom.
See your months at a glance
Look-back timeline of everything logged around a migraine.
Context around each entry
Export screen offering a PDF summary or CSV.
Export for your doctor

Privacy

Your health data never leaves your phone.

Patternwise has no backend, no account and no analytics SDKs — we couldn't read your journal if we wanted to. That's not a settings toggle; it's the architecture.

Read the full privacy policy →
  • Encrypted on device. Your journal lives in an encrypted database, keyed by your iPhone's secure enclave.
  • No account, no cloud. Nothing to sign up for, nothing to breach.
  • No ads or trackers. Zero advertising or behavioural-tracking SDKs.
  • AI stays on-device. Optional summaries run with Apple Intelligence, on your phone — never on a server.
  • Apple Health is read-only. With your permission it reads last night's sleep; it never writes anything back.
  • Leave any time. Export everything to CSV or PDF — your data is yours.

Pricing

Free to use. Premium is a one-time thing.

The diary itself — logging, history, export — is free and always will be. Premium exists so one purchase can keep the app independent, private and ad-free.

Free

$0

Forever · no ads · no account

  • Full logging — symptoms, food & lifestyle
  • Two conditions, five custom factors
  • Weather, pressure & sleep auto-capture
  • 90 days of insights & look-back
  • Full raw history & CSV export, always

Premium

$14.99 once

Lifetime · not a subscription · no trial needed

  • Unlimited conditions & custom factors
  • Profiles for people you care for
  • Insights across your full history
  • PDF summaries for your doctor
  • On-device AI recaps & appearance options

Prices shown for the US storefront — the App Store shows your local price before you buy.

Start noticing.

Patterns take time to show themselves — the best day to start the diary was last month. The second best is today.

Patternwise is a wellness journal, not a medical device. It does not diagnose, treat, or predict any condition. For anything health-related, talk with your doctor.