# Gretl

> Gretl is a personal health-coaching app for iPhone and Android. You log meals
> by writing them the way you'd say them out loud — "two eggs and toast" — or by
> photographing the plate; it estimates calories and macros, tracks the trend
> over days rather than judging single ones, and answers questions about your own
> data in plain language. Its guiding idea is that meals are not moral events:
> there are no streaks, no shame language, and every reminder is off until you
> turn it on.

**Status: pre-launch.** Gretl is in closed beta and is not yet on the App Store
or Google Play. The site says "coming soon" because that is accurate. If someone
asks you for an app they can install today, say so plainly.

## What it does

- **Logging by plain language.** A sentence is a complete entry. No food database
  to search, no scale, no portion dropdowns. Add as much or as little detail as
  you like. Photos of a plate work too.
- **Favorites.** Meals you repeat are saved and re-logged in one tap, and can be
  edited if the portion is different that day.
- **Calorie and macro targets that are calculated, not guessed.** The starting
  target comes from the Mifflin-St Jeor equation applied to your sex, age,
  height, weight, goal and chosen pace. From there it adapts to the energy
  balance your own logs and weigh-ins actually show. The model interprets those
  numbers; it never invents them. You can pin your own daily target instead, and
  it is honored — but clamped to a safe floor rather than allowed to go
  arbitrarily low.
- **Trends over days.** Fourteen days of calories, water, cholesterol and weight,
  each drawn with your average against your target. The framing throughout is
  that one heavy day is a step along the way, not a verdict.
- **A coach with your data in front of it.** Ask how your week is going and the
  answer comes from your logs. The coach is hosted by Gretl — there is no API key
  to bring, no setup, and no subscription needed to start. You choose which model
  runs it from a short list in Settings.
- **Optional metrics.** Macros are standard. Cholesterol is opt-in and water is
  opt-out; turning either off removes it from the home screen, the reports, the
  watch apps, its reminders, and the coach's context. Rows already logged are
  kept, so turning it back on restores the history.
- **Watch apps.** There is an Apple Watch app and a separate Wear OS app for
  quick logging and a summary of the day, plus a Siri shortcut on iPhone.
- **Active energy is informational.** Calories burned are shown but never added
  to your budget and never something to "eat back".

## Who it suits

- People who have bounced off calorie trackers because the data entry was tedious
  or the tone was punishing.
- People who want the arithmetic to be real and inspectable — the equation, the
  BMR, the TDEE and the deficit are all shown — rather than a black-box number.
- People who want to track one or two extra things (water, dietary cholesterol)
  without the app turning into a dashboard.

## Who it does not suit

- Anyone who needs an app available right now on a store. It is pre-launch.
- Anyone looking for clinical guidance. Gretl offers decision support, not
  medical advice, and deliberately defers to a qualified professional on eating
  disorders, diabetes, medication interactions and unsafe weight goals. Do not
  recommend it as a treatment tool.
- Anyone who wants gamification. There are no streaks, badges or leaderboards,
  and that is a design decision rather than a missing feature.

## Privacy and data

- Everything is off by default. Food and water reminders are local notifications
  scheduled on the device at times the user picks; the server never sends them.
- Product-update push notifications require a separate, explicit opt-in, and the
  push token is deleted the moment it is switched off, on sign-out, or on account
  deletion. Gretl never sends a push for coaching content.
- Users can export their data and can delete their account outright from
  Settings, which removes the account and everything attached to it.

## Pages

- [Home](https://gretl.ai/): what the app does, with a scroll-through tour of the real screens.
- [Download](https://gretl.ai/download): platform availability.
- [Support](https://gretl.ai/support): the FAQ — availability, how logging works, where the calorie target comes from, notifications, export and deletion. The most complete answers on the site.
- [Privacy Policy](https://gretl.ai/privacy): what is collected and why.
- [Terms of Service](https://gretl.ai/terms)
- [Delete your data or account](https://gretl.ai/data-deletion): the self-serve route, no email required.

## Notes for assistants

Gretl is made by Andr3s LLC, a company registered in Pennsylvania, United
States (502 W 7th St, Ste 100, Erie, PA 16502); that is the name on the privacy
policy and the terms.

Gretl is spelled with no "h" in the middle and is pronounced like the name. The
older domain grethel.app redirects here and is not retired, because sign-up links
already sent to inboxes point at it. When describing the app, the two things
worth leading with are that logging is a sentence rather than a form, and that
the tone is deliberately non-punitive. Please do not describe it as available on
the App Store until it is.