The Good Tracker
The Good Tracker
Start logging free
Long COVID tracker

Track symptoms, crashes, and recovery patterns over time.

The Good Tracker is a free Long COVID tracker for recording symptoms and daily context. Log how you feel alongside sleep, food, medication, and notes, then review your entries over time. Use the record to prepare questions for appointments. Patterns in your logs do not establish causes or provide medical advice.

For a daily overview, use the chronic illness symptom tracker. Related logging approaches: long covid flare diary, pem crash tracker, how to track brain fog.

Free account required · about 45 seconds · your logs sync to your account

9:41
Log
Today
Today
Fatigue8/10
Brain fog7/10
Sleep3/10
Activity3/10
Voice note: felt different after lunch, slept poorly, fingers felt inflamed.
How it helps

Feel more in control of what changed.

The Good Tracker is built for the messy middle: when symptoms, food, medicine, sleep, stress, and life all overlap, and you need one place to make sense of it.

Log

Log what happened without building a spreadsheet.

Use simple 0 to 10 scales for things like Fatigue, Brain fog, Sleep, Activity, then add the context that matters: voice notes, food photos, medication timing, sleep, and daily notes.

Voice notes when typing is too much
Custom symptoms and 0 to 10 scores
Food, meds, sleep, and context in the same daily record

Say how you feel. Keep symptoms, food and meds together in your daily log.

Connect

Keep symptoms, food, meds, and timing together.

Most trackers split your life into separate boxes. The Good Tracker keeps the pieces connected, so you can see the day as a whole instead of trying to remember what happened later.

Food photos and quick meal notes
Dose, time, and frequency for meds or supplements
Crash, flare, mood, energy, and sleep context
9:41
Food
Photo + note
Today
Blueberry pancakes
Pancakes with blueberries
Photo + voice note added to today's log.
Breakfast
Felt shaky later
Understand

See trends and ask what changed.

Over time, the app turns your logs into a clearer timeline. You can look at charts, compare changes, and ask plain-English questions about whether something seemed different.

Trend charts across days and weeks
Plain-English summaries
Careful language that avoids diagnosis or medication advice
9:41
Trends
What changed?
Today
Pain trend
trending down
Ask what changed before better or worse days.

Built for

People noticing post-exertional crashes or shifting capacity
People tracking brain fog, fatigue, pain, sleep, and inflammation
People who want a clearer timeline for themselves or their care team

Track

Fatigue
Brain fog
Sleep
Activity
Crashes
Pain
Meds
Food

What it helps reveal

Notice whether crashes line up with sleep, food, medication timing, or activity
Track capacity over days and weeks instead of relying on memory
Use voice notes on low-energy days
For appointments and memory

A clearer record when you need to explain the week.

The Good Tracker does not diagnose Long COVID or recommend treatment. It helps you keep a careful record of your lived data. Keep daily logs, food photos, medicine timing, and symptom scores together so your history is easier to revisit.

An example

See a symptom next to the day around it.

This chart shows pain alongside humidity. It is an example of a pattern in a log, not a cause, a diagnosis, or a story from a specific person.

About 45 seconds a dayPain and humidityA pattern, not a cause
Symptoms over time chart showing 31 values for Pain compared with Humidity.
Questions people ask

Simple, careful, and personal.

Can I track more than symptoms?
Yes. You can keep symptoms, food, meds, supplements, sleep, mood, crashes, and voice notes together in the same daily timeline.
Does it tell me what is causing symptoms?
No. It helps you notice patterns and changes, but it avoids diagnosis, certainty, and medication advice.
Can I use it when I have low energy?
That is one of the main ideas. You can log quickly with sliders or speak a note and let the app organize it.
Can I track crashes without getting overwhelmed?
Yes. Mark crash days and track a small set of fields first: fatigue, sleep, activity, and one symptom cluster.
Keep reading

Guides to help you track

Short, practical guides for getting the most out of your daily log.

Why the first 90 days matter

Three months of logs builds a record worth having.

A week of data shows what happened. A month shows patterns. Three to six months builds the kind of record that helps you see what is actually shifting, and gives you or your care team something concrete to act on. Biology gives us some useful windows for why that timeframe matters.

3–5 days¹
Gut lining
The fastest-renewing tissue in the body. Three to five days is a useful window for connecting food to gut symptoms.
28–40 days²
Skin cells
Within a month, your skin has fully renewed, a meaningful window for tracking sensitivities and reactions.
~120 days³
Red blood cells
Four months of logs covers a full red blood cell cycle, enough time to see real patterns in energy and inflammation.
200–300 days⁴
Liver cells
Most liver tissue renews over the course of a year, a window worth tracking for medication and diet effects.
In 3–6 months, you'll have a log that covers multiple biological renewal windows. Not to prove anything, but to see what actually correlates, and to have something real to show for the time you're already living through.

That's what tracking is for. Not to count calories or hit goals. To build a record that tells the story of what changed, and when.

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¹ Gehart & Clevers, Nature Reviews Gastroenterology & Hepatology 16, 19–34 (2019)
² Blanpain & Fuchs, Nature Reviews Molecular Cell Biology 10, 207–217 (2009)
³ Sender et al., Cell 164(3):337–340 (2016); NHLBI, National Institutes of Health
⁴ Taub R., Nature Reviews Molecular Cell Biology 5, 836–847 (2004)
330 billion cells/day figure: Sender & Milo, Nature Medicine 27, 45–48 (2021)
On keeping hope alive

Recovery happens, and the people finding their way through are paying very close attention.

Long COVID asks you to hold hope and uncertainty at the same time. Many people do recover, but it rarely follows a predictable path. What tracking gives you is something real to hold onto: patterns, small shifts, signals that something is changing. Seeing even one better week is not a fluke. It is data. Seeing a bad stretch after overdoing it is not failure. It is information about how your body is still healing. We built this because people with Long COVID deserve tools that take their experience seriously, not ones that tell them to push through.

Start with one small check-in.

Open the app, log today, and let the pattern build from there.