Zebra

For invisible chronic illness

Invisible illness tracker

Last reviewed: July 25, 2026

A symptom tracker for invisible illness that does not feel like homework.

Zebra is an iPhone symptom tracker for invisible illness, built for people who need low-energy tracking, brain fog support, flare history, orthostatic vitals, and a doctor-ready report.

Download on the App Store

Download Zebra. Built for iPhone. Not medical advice.

Plain answer

What this page is about

Invisible illness can make the hardest part of care feel like proving what happened when nobody else saw it.

Zebra helps you track your own history calmly and bring clearer proof to the appointment without turning your body into a wellness project.

Why it matters

Why invisible illness tracking needs to feel different

  • Symptoms may not be visible during the visit, even when they affected your whole month.
  • Brain fog can make recall unreliable at the exact moment you need clarity.
  • A tracker built for flare days should save taps, decisions, typing, time, and energy.

Best fit

Choose Zebra if...

  • You want POTS, EDS/hEDS, Fibromyalgia, dysautonomia, and overlap symptoms in one iPhone app.
  • You are preparing for a doctor appointment and need a clearer history than memory or scattered notes.
  • You need low-energy flare tracking with symptoms, meds, salt, water, triggers, and orthostatic vitals together.

Not trying to be

Choose something else if...

  • You are looking for diagnosis, treatment advice, urgent care, or medication recommendations.
  • You primarily want fitness goals, habit streaks, workouts, or a generic wellness dashboard.
  • You need Android support today.

Report preview

See what the appointment payoff looks like.

Zebra turns patient-entered history into a doctor-ready PDF report with flares, symptoms, medications, salt, water, triggers, notes, and orthostatic vitals. Premium includes PDF report export.

  • 30-day summary for appointment prep
  • Orthostatic observations connected to daily symptom context
  • Designed to reduce memory work, not replace medical care

View sample doctor report PDF Uses fake patient data for preview only.

Appointment preparation
Zebra doctor-ready report and appointment preparation screen showing changed symptoms, a consultation brief preview, and patient-entered history for a specialist visit.

What Zebra tracks

What Zebra keeps in one place

  • Daily flares, severity, duration, and notes
  • Symptoms, triggers, notes, and appointment context
  • Medications, salt, water, and questions to bring up
  • Orthostatic vitals with lying, sitting, and standing observations
  • Optional HealthKit heart-rate support for the orthostatic flow
  • Gentle daily reminders users can control
  • Doctor-ready PDF report export with Premium

Trust and safety

Medically careful by design.

Zebra supports self-organization and care conversations. It is not a diagnostic tool, treatment plan, or replacement for medical advice.

Zebra does not diagnose, treat, prevent, cure, replace medical care, or interpret symptoms. Bring concerning symptoms, medication questions, salt/fluid changes, and treatment decisions to a qualified healthcare professional.

FAQ

Questions people ask before downloading Zebra.

Can Zebra help if my symptoms are invisible during the appointment?

Zebra can help you bring a clearer patient-entered history of what happened between appointments, but it cannot control how any clinician will respond.

Is Zebra built for brain fog?

Yes. Zebra uses short, structured check-ins and report summaries so you do not have to rebuild everything from memory.

Does Zebra diagnose POTS, EDS, Fibromyalgia, or dysautonomia?

No. Zebra does not diagnose, treat, prevent, or cure any condition. It helps you track patient-entered history so you can prepare for care conversations.

Can I use Zebra before I am diagnosed?

Yes. Zebra can help you track flares, symptoms, notes, and appointment questions before or after a diagnosis. It is not a substitute for professional medical care.

Is Zebra available on Android?

Not yet. Zebra is currently available for iPhone on the Apple App Store.

Is Zebra a fitness or wellness app?

No. Zebra is built for invisible illness tracking, brain fog, flare days, orthostatic vitals, and doctor report preparation. It is not a fitness app or streak-based wellness app.

Download Zebra

Start tracking today, before the next appointment asks for the whole story.

Download Zebra. Track free; Premium includes unlimited history, PDF report export, and the full orthostatic archive.

Download on the App Store