Simmer

For people who quietly track every meal

The diary that
reads itself back to you.

A 30-second-per-meal logger for chronic acid reflux & GERD. We replace your spreadsheet — and find the triggers you can't see in the data.

Try the free Trigger Finder → How it works

No signup. Quiet by design.

From the people we built it for

"I've kept a 3-month spreadsheet and I still can't tell what's setting me off. There's just too much data."

— r/GERD

"My GI told me to journal but I keep forgetting which dinner caused last night's chest pain."

— r/AcidReflux

"I want to bring something to my next appointment that's actually readable, not 47 rows of phone notes."

— r/LPR

How Simmer reads your diary

  1. 01

    Log meals in 30 seconds

    Type freely or use structured rows. We parse your own words — no rigid food database.

  2. 02

    AI finds personal patterns

    Foods, timings, portion sizes — ranked by how often they show up before your symptoms.

  3. 03

    Get a one-page report

    Plain language. No p-values. Doctor-shareable PDF in the paid tier.

Try it on your own diary, right now.

Paste your last week of meals & symptoms. We'll tell you your top 3 triggers in 60 seconds.

Open the free Trigger Finder →

Simple. Quiet. Pay when you want more history.

Spotcheck

$0

Free forever

  • Last 7 days of logs
  • 1 AI pattern report / month
  • Web access
Start logging
Most chosen

Tracker

$9/mo

$72/yr — save 33%

  • Unlimited history
  • Weekly AI pattern reports
  • Doctor-shareable PDF
  • Email + push reminders
  • CSV export
Join the early list

Care Team

$19/mo

$156/yr

  • Everything in Tracker
  • Share-with-doctor portal
  • Apple Health import
  • Custom report templates
  • Priority support
Notify me at launch

Get the weekly trigger report.

One email a week. Your top 3 triggers, observed timing patterns, and a doctor-friendly summary. Unsubscribe in one tap.

No spam. No ads. Quiet by design.

FAQ

Is Simmer a medical device or diagnostic tool?

No. Simmer is informational only — it surfaces patterns in your own logs. It's not a substitute for your physician, and we never recommend medications or diagnoses.

How is this different from mySymptoms or Cara Care?

Those apps log. Simmer interprets. We use a language model to read your diary back to you — finding food, timing, and portion patterns you can't easily see in raw rows.

What about my privacy?

Your entries stay associated with your account, encrypted at rest, and we don't sell or share data with advertisers. Quiet by design.

Can I import my existing Excel sheet?

Yes — paste it directly into the free Trigger Finder. The AI parses free text and ranks triggers immediately.

How does the doctor PDF work?

One-page summary: top 5 triggers, severity timeline, frequency, and your 5 most common foods. Designed to fit on a clipboard.