Gretel
A calm health journal
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Say how you feel — Gretel writes it down in your words, beside your own Apple Health signals, so nothing is lost before your next appointment. A journal, not a doctor.
Keep your story. Notice your patterns.
Gretel is a calm, private health journal for iPhone and Apple Watch. Say how you feel in a short, natural conversation — Gretel writes it down in your own words and keeps it beside the signals your devices already record, so the small things aren't lost by the time you're sitting in the doctor's office.
Speak, and it's noted
Tap once and talk. A short, warm conversation turns "my head hurts and I slept badly" into a tidy journal entry — in your words, never a diagnosis. No forms, no fuss. Prefer to type or tap? That works too.
Your entries, beside your own signals
Every note lands on one timeline next to what your Apple Watch already saw — heart rate, heart-rate variability, blood oxygen, respiratory rate, wrist temperature. When "did anything feel off lately?" comes up, you have an answer instead of a guess.
Noticed, never diagnosed
Gretel gently points out when things you logged tend to show up around the same time — "tired mornings often followed short sleep." Co-occurrence isn't causation, and Gretel says so. What you do with a pattern — a small habit change, a question for your clinician — stays yours.
On the wrist
Log a feeling or a quick note straight from Apple Watch. It syncs to your iPhone, where your trail lives.
Yours, handled honestly
Your journal and health signals stay on your iPhone. There's no account and no cloud copy of your journal.
Cloud voice features send only the words you speak, through Gretel's own gateway — never your raw Apple Health data.
Export everything to a file, or erase it all, anytime — right from the app.
Free & Pro
Journaling, your trail, on-device insights, and Apple Watch capture are free. Gretel Pro unlocks unlimited live voice conversations. (On-device voice notes and journaling stay free.)
Gretel is a personal health journal — not a medical device. It does not provide medical advice, diagnosis, or treatment, and it is not for emergencies. If something feels urgent, contact a clinician or your local emergency services.
Terms of Use: https://gretel.lemomo.ai/terms
Privacy Policy: https://gretel.lemomo.ai/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, XIAYANG ZHANG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- XIAYANG ZHANG
- Size
- 11.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Gretel Pro (Yearly) $39.99
- Gretel Pro (Monthly) $5.99
- Copyright
- © 2026 Xiayang Zhang