Plainlog

A ten-second daily symptom check-in with a doctor-ready PDF.

One fair price, no subscription, no account. Nothing leaves your phone.

Price, plainlyFree for 14 days, then $14.99 once.

Open Plainlog in your browser. It works now on any phone or computer, with no account, and keeps everything in that browser. Coming later to the App Store and Google Play. Read the privacy policy first if you like.

What it looks like

Plainlog today screen. Today: your symptoms as chips, a 0 to 10 row under each, sleep, energy, pain and one Save button.
Log today in ten secondsToday: your symptoms as chips, a 0 to 10 row under each, sleep, energy, pain and one Save button.
Plainlog history screen. History: date, small colour bars for severity, sleep and pain numbers, the first line of your note.
Every day, at a glanceHistory: date, small colour bars for severity, sleep and pain numbers, the first line of your note.
Plainlog trends screen. Trends: 7-day and 30-day bars per symptom, and at most one sentence that describes and stops.
See the pattern, in plain wordsTrends: 7-day and 30-day bars per symptom, and at most one sentence that describes and stops.
Plainlog report screen. Report: one month on one page, ready to print or hand over on the phone.
One page your doctor will readReport: one month on one page, ready to print or hand over on the phone.

Why it is different

A check-in, not a questionnaire

One screen, your own symptom names, a 0 to 10 scale. “Same as yesterday” fills in a stable day with one tap.

Your record is always yours

Viewing, editing, deleting, trends and PDF export never lock, not after the free period, not ever.

Nothing leaves your phone

No account, no sign-in, no email, no analytics. Export it all as JSON or delete it all from Settings at any time.

Dark first

Designed for logging from bed in a dark room. No pure white surfaces in either theme.

Quiet

No streaks, no badges, no “how are you feeling”, no notifications unless you turn the single daily reminder on.

One page your doctor will read

Pick a month, share a PDF. Black on white, a symptom table with averages and days logged, a day-by-day grid, notes.

The first minute

  1. Read the price. It is on the first screen: free for 14 days, then $14.99 once.
  2. Name your condition, or skip.
  3. Pick three or more symptoms from the suggestions, or type your own.
  4. Log today. The History row appears, and Trends says how many days until the first pattern.

Price, plainly

Free for 14 days, then $14.99 once.

Viewing, editing, deleting, trends and PDF export never lock, whether or not you buy. Only adding new entries needs the one-time unlock.

On the web the one-time unlock is paid through Stripe Checkout and gives you an unlock code, still with no account. No subscription, no renewal, no tiers.

Guides

Who it is for

For people with migraine, fibromyalgia, ME/CFS, POTS, EDS, lupus, long COVID, IBD or chronic pain who have been asked to “keep track of it”, and who have already abandoned a tracker that asked too much.

Privacy in one sentence

Everything you enter is stored on your device and nowhere else. There is no account, no analytics and no server of ours that ever sees your data.

The full privacy policy says the same thing at length, and the Consumer Health Data Policy is the section Washington, Nevada and Connecticut law asks for by name.

Plainlog records what you enter and reports it back. It does not diagnose, interpret, suggest treatment or calculate anything about medication. It is a notebook, not a clinician.