A symptom tracker that works on crash days
Long COVID symptoms move in waves — fatigue, brain fog, racing heart, post-exertional crashes that arrive a day or two after you overdid it. The apps that could help you see those patterns usually demand more energy than a crash day allows.
Ebb was built around that reality. You tap your symptoms, rate each one 1 to 5, add a note if you want, and you're done. Thirty seconds, even through brain fog.
Download Ebb free on iPhoneWhy track long COVID symptoms at all?
Two reasons, and both are practical, not aspirational:
- Pacing. Post-exertional malaise shows up 24–72 hours after the exertion that caused it, which makes the connection nearly impossible to see in the moment. Tiny daily logs put what you did Tuesday and how you crashed Thursday on the same chart.
- Appointments. Long COVID care means repeatedly describing a moving target to doctors. A three-month trend of fatigue, brain fog, and heart symptoms answers "how have you been?" in one glance — and Ebb exports to PDF so you can hand it over.
What makes tracking sustainable with chronic illness
The tracker you'll still be using in six months is the one that costs the least energy. Ebb keeps the cost low on purpose:
- One screen, minimal taps. No navigating menus to log.
- Your symptoms, your words. Track fatigue, PEM, brain fog, palpitations, breathlessness, sleep — or anything you name yourself.
- A gentle daily reminder at whatever time works for your body.
- Missed days don't break anything. No streaks, no guilt. Log when you can.
- Private by default. Your health data stays on your device.
Free tier: track up to 5 symptoms with full logging, history, and 7-day trends.
Premium: unlimited symptoms, full trend charts, and PDF/CSV export for appointments.
Also living with ME/CFS, POTS, or fibromyalgia?
The same design holds: low-energy logging for conditions that take your energy. Ebb doesn't care what your diagnosis is — it tracks whatever symptoms matter to you, at whatever pace you can manage.
Get Ebb on the App StoreCommon questions
What fibromyalgia symptoms can I track in Ebb?
Whatever you name. Most people with fibro track widespread pain, fatigue, brain fog, sleep quality, morning stiffness, headaches, and mood. You rate each one 1 to 5 and can add one short note for the day.
Is Ebb free?
Yes. The free tier lets you track up to 5 symptoms with full daily logging, complete history, 7-day trends, a daily reminder, and CSV export. Premium ($4.99/month or $29.99/year) adds unlimited symptoms, full trend ranges, and doctor-ready PDF reports.
Can I show my log to my rheumatologist?
Yes. Premium generates a PDF report of the period you choose — 30 or 90 days, 6 months, or your full history — with a trend chart per symptom plus your daily 1–5 ratings and notes (see a real sample). The free tier exports your full history as CSV.
What happens if I miss days during a flare?
Nothing. Ebb has no streaks and no guilt mechanics. A gap of a week doesn't break your history or your trends — you pick up whenever you can, and you can go back and log a missed day from History whenever you want.