a symptom tracker · launching 2026
tracking your health
shouldn’t feel like
a second job.
pebble is a beautifully simplistic symptom tracker for chronic illness, and the brains they live in. log in 30 seconds. before your appointment, walk in with a one-page brief your doctor actually reads.
one email at launch. no marketing. unsubscribe with one click.
no account. no cloud. no analytics, ever. your symptom data lives on your phone and only your phone.
built for
- POTS
- EDS
- MCAS
- endometriosis
- PMDD
- long COVID
- migraine
- ME/CFS
- fibromyalgia
- chronic pain
- IBS
- IBD
- ADHD
- AuDHD
- absolutely any symptom you want to track
the problem
most symptom apps feel like spreadsheets.
2,000-symptom checklists. mood rainbows. daily questionnaires. trackers built for the app, not for you.
you log for two weeks. you forget. you give up. then your appointment comes and you sit in the waiting room trying to remember what wednesday was like, three weeks ago.
and the doctor gets six minutes. they cannot read your 47-page export. so what was the point of logging at all?
your six minutes,
summarised.
recording
say what's on your mind.
nothing is uploaded.
tap to stop
easily record with voice
Tuesday · may 21
logged at 9:42pm
how you were
symptoms · headache, fatigue
log mood through the day
the brief
this is what your doctor sees.
not a 47-page spreadsheet. a one-page narrative your doctor reads in 60 seconds, with what is changed since last visit, what may have contributed, and a quote you wanted them to hear.
the brief is generated locally on your phone. it never touches a server. you can share it as a pdf, plain text, or just read it off the screen in the appointment.
- reads in 60 seconds
- a narrative paragraph, not a chart
- a "what's changed since last visit" section
- a quote field for one thing you don't want to forget
─────────────────────────────────PATIENT-GENERATEDSYMPTOM SUMMARY May 11 – May 17, 2026───────────────────────────────── THE PATTERN Energy averaged 4/10 this week,down from 6/10 the previous week.Pain peaked at 8/10 on Wednesdaymorning, correlated with poor sleepthe night before (3.5 hrs, Apple Health).Brain fog reported 4 of 7 days,clustered Tuesday through Friday. WHAT MAY HAVE CONTRIBUTED • Pain peaks lined up with skipped mestinon (3 times this week). • Worse sleep (4h average) preceded 3 of your worst days. • Period day 1, moderate link. These are patterns, not causes. Only you and your doctor know what's actually going on. A NOTE I ADDED FOR YOU "I want to ask about the morning crashes. they feel different from my usual flares." ───────────────────────────────── Generated locally on iPhone. Your symptom data never leaves this device.─────────────────────────────────
what it does
almost nothing. on purpose.
- 01
a 30-second log
three sliders. tap any symptoms. done. the whole thing fits on bad days when you can barely look at your phone.
- 02
a brief that reads like a human wrote it
before your appointment, pebble prints a one-page narrative your doctor can read in 60 seconds. not a chart dump. a paragraph.
- 03
patterns when you want them
pebble watches quietly. when sleep, stress, weather, food or your cycle line up with a flare, you see a margin note. three sentences. no heatmaps.
- 04
truly local
no account. no cloud. no analytics, ever. your symptom data lives on this phone and only this phone. uninstall and it is gone.
the body map · optional
a number for how bad. a map for where.
pain doesn’t fit on a single slider. your migraine is not the same kind of bad as your hip flare. so under the pain slider there is a small affordance — map where it hurts— that opens a body diagram. tap the spots that hurt today. front and back. that’s it.
the slider is severity. the map is shape.
- tap a region to mark, tap it again to unmark
- anatomical R / L convention, the same way your doctor was trained to read a chart
- marks are stored as regions, not coordinates — no body-shape assumption baked into your data
- the brief tucks a tiny front + back diagram with your marks under the pain line, for the doctor
completely optional. leave it untouched and the pain slider works exactly as it always did.
where does it hurt?
done
front
where does it hurt?
done
back · 3 spots
how it works
three taps and a slider.
01
open pebble
no signup. no profile. you land on today, a single page that knows what you care about.
02
log how you feel
drag three sliders. tap a symptom if you want. add a voice note if typing is too much. tap done.
03
tap brief before your appointment
a one-page narrative prints, with what is changed since last visit. share it as a pdf, text, or read it on screen.
apple health · optional
if your watch already tracks it, pebble can read it.
you already wear something that logs sleep and heart rate. pebble can pull those numbers in from apple health, so the brief shows what your body was doing the night before a flare, not what you tried to remember.
- sleep hours, the night before each log
- resting heart rate and hrv trends
- steps and active minutes
- cycle data, if you would rather not retype it
this is the one part of pebble that talks to another app.
the rest of pebble is offline by design. apple health is not. so this whole feature is off by default. you turn it on in settings, you pick which categories pebble can read, and you can turn the whole thing off again with one tap. pebble forgets what it pulled in.
read-only. pebble never writes back to apple health. android gets the same thing via health connect at launch.
pebble
a quiet symptom tracker
settings → apple health.
off by default.
a note before we start
your symptom data stays on this phone. forever. if you delete the app, it is gone. we cannot help you recover it. that’s the deal.
no crash reports. no analytics. no servers. nothing about you ever leaves this phone.
(full details in the privacy policy.)
what pebble is not
a list of things we left out.
- no streaks. no badges. no "you missed yesterday".
- no AI wellness coach. no journal prompts.
- no account. no email. no password. no cloud.
- no analytics. no crash reports. no third-party trackers.
- no leaves, no zen rocks, no "find your calm".
- no chart dumps for your doctor. one page, in english.
the three conversations this app is built around
“on bad days, i can barely look at my phone.”
so pebble's default log takes 30 seconds. three sliders and done.
“i want to walk into my appointment with something they’ll actually read.”
so the brief is a paragraph, not a spreadsheet. 60 seconds to read, on one page.
“i’m tired of apps that make me feel behind.”
so pebble has no streaks. you can skip a week. vacation mode is one tap.
pricing
one payment. forever.
lifetime unlock at launch. the doctor brief itself is free for everyone, forever. waitlist members get the launch discount.
£24.99
indicative launch price. monthly + yearly also available.
questions you might be asking
one more thing
your brief is ready when you are.
one email at launch. no marketing. unsubscribe with one click.
i’ll be here.