Privacy Policy
Effective September 24, 2026
The short version. Your Apple Health data stays on your iPhone. Nothing is sent anywhere unless you use the Group or Foods tabs. In a group, only the daily summary numbers described below are shared with the people in that group. In Foods, only the foods you save and the orders you choose to share are stored. There are no ads, no analytics, no tracking, and nothing is sold.
Apple Health data
With your permission, Daily Health reads active and resting energy burned, dietary energy and macronutrients, body weight, and sleep from Apple Health. It writes only body weight, and only when you log a weigh-in yourself. This data is processed on your device to produce the numbers you see in the app and its widgets. It is not used for advertising or marketing, is not sold, and is not shared with third parties, except for the group summaries below that you explicitly opt into.
What stays on your device
Your goals, daily corrections, calculation settings, goal history, sleep score history, and a cached copy of your recent numbers are stored on your iPhone in the app's private storage, shared only with the app's own widgets.
iCloud backup of settings
A small set of app settings (calculation values and your calorie, protein and sleep targets) is mirrored to your own iCloud account using Apple's key-value storage so they survive a reinstall or a new phone. No health data, weigh-ins, sleep history or goal history is stored in iCloud. This is your iCloud; the developer cannot see it.
Groups (optional)
If you use the Group or Foods tab, an anonymous account is created for you. There is no password. The following is stored on our backend (Supabase, hosted in the United States) and is visible to the members of the groups you join:
| Data | Details |
|---|---|
| Display name | The name you type in. |
| Daily summary | For each day of the group's date range: calories eaten, calories burned, pounds changed and percent of your goal (by scale and by estimate). Your actual scale weight, estimated weight, and pounds changed are stored and shown only while "Share my actual weights" is on. Turning it off removes them from the numbers you already shared. You can change it at any time. |
| Your group goal | The starting and goal weight you enter for that group. Other members see them only while "Share my actual weights" is on. |
| Messages and cheers | Anything you post in a group. |
Also stored, but not visible to other members: your device's push notification token (only if you turn on alerts), people you have blocked, reports you submit, and people you have removed from a group you own. Groups are joined with an invite link or code; the app does not collect email addresses.
Raw Apple Health records are never uploaded. Only the daily summary above is.
Foods (optional)
The Foods tab lists diet-friendly foods and fast-food orders. Foods and recipes you save are private to your account. Fast-food orders you choose to share are public: every Daily Health user can see the order text, calories, macros and price. Your name is attached to a shared order only if you turn on "Show my name". Shared orders can be reported by anyone; reported orders are hidden from the person who reported them, hidden for everyone after more than one report, and reviewed within 24 hours. You can delete anything you posted at any time.
To show restaurant and store logos, the app asks Google's public favicon service for the logo of that business's website (for example, chipotle.com). The request includes only the website name, never anything about you.
Notifications
If you enable group alerts, your device token is used to send you notifications through Apple's push service about activity in your groups. Reminders for weigh-ins and logging are generated entirely on your device.
Deleting your data
- Your account: Settings, "Delete my account and shared data" (also in the Group tab settings). This permanently deletes your name, memberships, shared numbers, messages, cheers, blocks, device token, and every food and order you saved or shared.
- Leaving a group deletes the numbers and cheers you shared with that group.
- Everything on your phone: delete the app. Apple Health data is managed in the Health app.
- You can also email support@matthewpreece.com and we will delete your account for you.
Children
Daily Health is not directed to children under 13 and does not knowingly collect information from them.
Not medical advice
The app provides estimates for general wellness. It is not a medical device and does not provide medical advice.
Changes
If this policy changes, the new version will be posted here with a new effective date.
Daily Health is made by Matthew Preece. Contact: support@matthewpreece.com