The health diary for when you are under the weather.
Track an acute illness, an ongoing condition you live with, a recovery from an operation or injury, and just the everyday. Results, full history, and appointments stay filed in your story.


Four kinds of tracking, for four kinds of day.
An ordinary day worth noticing, a condition that stays, a long mend, a sudden illness. Each keeps its own kind of record, in its own colour.
Not unwell, just keeping an eye. A minute of simple tools for energy, sleep and water, alongside the supplements you might be taking.
Hay fever, asthma, eczema: each with its own place, its own flare days, and what seemed to set them off. A record that grows the longer you keep it.
The slow, steady weeks after an injury or surgery. A small daily log of the mend, and aims set by you or by your physio or practitioner, built up at whatever pace suits you.
A cold, a flu, a stomach bug. Log how it feels while it’s here, and when it passes, it settles into your story with a note for next time.

Note what is going on, by how it actually feels.
A sore throat, a headache, a blocked nose. Choose what fits, slide from mild to severe, and move on. Grouped by where it shows up, so nothing is a chore to find.

An honest read of your day.
Energy, sleep, how much you drank: a few sliders, then a few clear lines about the day. No scores out of a hundred, no judgement. Just what was there.

Every illness, year by year.
When something passes, it settles into a record of what you tried, how it went, and a note for next time. A history you will still have when you need it.

The bloods, the scan, the letter, all in one place.
Photograph a result or keep the PDF, give it a name, and file it against the visit it came from. A lot easier than remembering which drawer it might be in.

Keep track of what you’ve taken.
Log a medication or a supplement in a moment. See what you’ve taken today, and when the next reminder is, with no counting back through the day to be sure.

A nudge, not a nag.
Set a reminder for something you’re taking, a recovery aim, or an appointment.

What’s next, on your Home Screen.
A widget for each person you look after, showing the next dose and when it’s due, in the colour of what they’re tracking. Press the plus and confirm, and it’s logged without opening the app. An aim counts itself off as you go.
What your watch already measures, kept with the day.
If you wear one, the numbers it collects in the background join everything else you track, to complete the full picture.
Brought in from your wearable
Sleep, resting heart rate, steps and more: whatever your watch or ring collects, brought across when you choose and woven into the same reading as everything you’ve noticed yourself. Wear it or don't. The day still counts.
Walk in with the whole story. Walk out with it written down.
Appointments live beside the illness they belong to: before, during, and long after the visit.
Every visit, kept with its illness
Take a summary in, note what was said, and keep the paperwork: photos of reports, referrals and instructions, saved with the visit. Every appointment settles into the story it belonged to, year after year.
Every script you’re holding, in one place.
Share the eScript link from the text your doctor or pharmacy sent, and Underweather keeps it. At the counter, it’s on screen and ready to scan.

Shows it, tracks it, remembers the repeats
The link stays on your phone. It is never sent with a reading and never included in a backup.
The rest of it, kept close.
In an emergency
The few things worth saying quickly (allergies, conditions, who to call) on a card, a lock screen, or in your wallet.
Care & remedies
The small things you reach for, like honey and lemon, steam and rest, kept alongside everything else.
Patterns over time
Look across colds, flus and allergy seasons to see what comes back, and when it tends to.
Your day, read back in a few lines.
Unhurried, and in plain words, Underweather sums up what you logged, notes what has changed, and offers a little comfort on the days that feel like a setback. It never diagnoses.
Day six now. With a cold, the cough is usually the part that lingers. It can hang on after everything else has cleared, and it’s often worse at night. Energy tends to be the last thing to come back, so if today felt flat, that’s your body still mending, not a setback. Nothing here looks out of the ordinary for where you are.
The shape of it, with the fever gone, a cough that stays and energy trailing behind, fits a cold in its last stretch, running its usual course.
For whoever you're keeping an eye on.
Yourself, your partner, your children, your parents. A cold, an allergy season, an ongoing condition, the slow mend after surgery, or just the everyday things worth remembering.



The cold you're pushing through, and the everyday things you'd rather not forget.
A record for the person beside you, kept right next to your own.
Every cough, cold and allergy season, for one child or all of them.
When you're the one who remembers: their medications, in one place.
In their own words.
I am so glad I found this app! It has been such an incredible support, especially when it comes to keeping track of my kids' health and wellbeing. Being able to record ongoing symptoms over time helps build a much clearer picture of what is really going on. Honestly, it feels like having a whole other adult supporting you through those tough times, quietly keeping track of the things your exhausted brain just can't keep up with.
Excited to see an app that is so user friendly, logical, and had all my relevant health information in the one app, especially for us older generations. Also really love the calming colours, it's a pleasure to use.
Yours, and only yours.
Your records stay on your device. There is no account, and nothing of yours is kept on our side unless you turn on backup, which is encrypted so only your phone can open it. The only thing that ever leaves is what you send for a reading, and that is never used to train AI. A reminder never logs anything from the lock screen either. Pressing it opens the app, and you mark it there.

Notes on noticing, recovering, and remembering.
What to write down when your child is unwell
When a child is sick, the days run together. A few notes make the picture clearer.
Read →Keeping track of someone else's medications
When you're the one who remembers, for a parent or anyone you look after.
Read →Hay fever season: keeping a simple diary
When the pollen rises each spring, a few notes show you what your season looks like.
Read →