PainTrail is for anyone living with ongoing pain, whether that’s arthritis, back pain, migraine, fibromyalgia, endometriosis, nerve pain or something else. When you set it up, you choose what you’re tracking and where it usually hurts, so your daily check-in only shows what matters to you.

Everything you enter stays on your phone. There’s no account to create, no ads and no analytics. You decide if and when your data leaves the device, for example by exporting a spreadsheet to share with your doctor.

The first version is completely free, with no ads. Optional paid extras may come later, and everything that’s free now stays free. PainTrail needs Android 8.0 or later.

What's in PainTrail

A daily check-in designed to take about a minute
Body maps, including detailed hands and feet
Quick flare log for bad moments during the day
Mood, fatigue, sleep and stress tracking
Medication and treatment log
Calendar history and 7- and 30-day trends
CSV export and a backup you can restore
Optional app lock and daily reminder
Light and dark mode
Works fully offline, with no account

PainTrail is a diary, not a medical device. It doesn't diagnose or treat any condition. Always talk to your doctor about your health.