Track your symptoms.
Share them clearly.

A simple, secure log for symptoms and pain. Time each episode. Tap what you felt, and note how it affected your day. Export a clean record your doctor can actually use.

Get Started — Free
Free. No credit card. Works on your phone or in any modern browser.
PainLog
🧠 Head Injury / Concussion · 4 entries
7
🧠 Apr 2 at 9:14 AM
Headache · Light sensitivity
5
🧠 Apr 1 at 3:42 PM
Brain fog / slowed thinking · Screen time
4
🧠 Mar 31 at 11:20 AM
Dizziness · Noisy or busy environments
3
🧠 Mar 30 at 7:55 PM
Memory problems · Work tasks
New
Built for what you're tracking

Pick a tracker the first time you sign in — Heart, Head Injury / Concussion, or tell us what you're tracking. Each one comes with the symptoms and triggers that fit.

Heart / Cardiac

Where PainLog started, and still all here. Track cardiac episodes, symptoms, and triggers.

Head Injury / Concussion

Track symptoms after a concussion or brain injury. Follow them over time, for recovery and for the record.

General Pain

A flexible tracker for any recurring pain. More specific trackers are coming.

Tracking something else? Tell us in the app. You'll get the General tracker now, and your answer decides what we build next. You can switch anytime with Switch tracker at the bottom of your log.

Everything you need

Severity scale

Rate each episode from 1 to 10 with a color-coded slider. The label matches your tracker — Pain Level for heart and general pain, Symptom Severity for concussion.

Live timer

Every new entry starts a timer. Heart entries auto-stop at 20 minutes. Symptom trackers stay open until you stop them, so a long day is recorded as a long day.

Symptoms & triggers, tuned to your tracker

Quick-tap chips that fit what you're tracking. For heart: Pressure, Shortness of breath, At rest. For concussion: Headache, Light sensitivity, Screen time.

Functional impact

Record what an episode cost you — Missed work, Couldn't drive, Missed an event — or mark no impact. The difference between how it felt and what it did.

Export for your doctor

Download your log as text, CSV, or PDF. Text and PDF open with a cover sheet: your name, the date range, and the entry count. Email it or print it before your appointment.

Your entries, on every device

Sign in from any browser you use. Your entries sync to your account, so the log you started on your phone is waiting on your laptop.

How It Works

1

Pick your tracker

The first time you sign in, choose Heart, Head Injury / Concussion, or "Something else" — which starts you on the General tracker. You can switch later.

2

Tap "New"

On your phone or in your browser. The entry starts the moment you tap.

3

Record what you felt

Set the severity. Tap the symptoms and triggers that match. Note how it affected your day, and add anything else. Under a minute.

4

Stop, or leave it open

When it passes, tap Stop. Heart entries auto-stop at 20 minutes; symptom entries stay open until you end them.

5

Share it

Export as text, spreadsheet, or PDF. A clean, complete record, so you're not reconstructing details in the exam room.

Your Data, Protected

PainLog is built with security-first architecture. Your health data is encrypted and isolated — only you can access it.

Encrypted at Rest

All data stored with AES-256 encryption in AWS DynamoDB.

Encrypted in Transit

Every connection secured with TLS 1.3. No data exposed in transit.

User Isolation

Each account's data is completely isolated. No cross-access possible.

Sign in your way

Sign in with Google, or with your email and a one-time code — no password required.

Frequently Asked Questions

No. PainLog is a personal tracking tool, not a medical device or diagnostic tool. It helps you record symptoms to share with your healthcare provider. Always consult a doctor for medical decisions. If you have severe chest pain, or danger signs after a head injury, call 911 or seek emergency care now.
Three trackers today: Heart / Cardiac, Head Injury / Concussion, and General Pain. Each one has its own symptoms and triggers. Tracking something else? Choose "Something else" when you start — you'll get the General tracker now, and your answer decides what we build next.
Yes. All data is encrypted at rest (AES-256) and in transit (TLS 1.3). Your entries are isolated by user — no one else can see them. We've signed a Business Associate Agreement with AWS and follow HIPAA security best practices.
PainLog is free. We believe essential health tools should be accessible to everyone. If you'd like to help cover our infrastructure costs, there's an optional support link in the footer.
Absolutely — that's what PainLog is built for. Export your full log as a text file, CSV spreadsheet, or formatted PDF, then email it or print it before your appointment.
No. Open app.painlog.org in any modern browser and sign in. On iPhone or Android, use your browser's Add to Home Screen to launch it like an app. PainLog works best with an internet connection, which keeps your entries synced to your account.
Not yet. We're working toward it. Until then, Add to Home Screen gives you an app-like experience.
Yes. You can delete individual entries at any time. To delete your whole account, tap Account in the app and follow the delete steps — you'll be offered a full export of your data first. Deletion is scheduled with a 7-day grace period: until the deadline we show you, you can stop it by signing in and tapping Cancel deletion (signing in alone doesn't cancel it). After that — normally within a day or two — your account and entries are permanently deleted. Deleted data may persist in encrypted backups until those backups expire — currently within 35 days of deletion — and is never restored to production except for disaster recovery. If you can't get into the app, email privacy@painlog.org and we'll verify your identity and delete it for you. See our Privacy Policy for details.

Start tracking today

Free, fast, and built for the moments when you need it most.

Open PainLog