Privacy Policy
Effective November 1, 2026
This policy explains what the MacroMania app for iPhone and Apple Watch (the "app") does with your information. "We" and "us" mean the developer of MacroMania.
Information that stays on your device
Everything you enter in the app is stored on your iPhone in the app's private storage and is not sent to us:
- Your food log, meals, ingredients, coffee and water entries, workouts and goals.
- Your profile: name, email, address, height, sex, goal weight, and trainer or nutritionist email addresses, if you enter them.
- Weekly body check-ins, measurements and progress photos taken with the camera or chosen from your photo library.
This data is included in your device backups (iCloud or computer) according to your own backup settings. Deleting the app deletes this data from your phone.
Apple Health
With your permission, the app reads steps, active energy, workouts, sleep and body weight from Apple Health to show your daily progress and weekly report. The app does not write to Apple Health on your iPhone.
- Health data is used only to show you your own progress inside the app.
- Health data is never sent to our servers or to any third party, never used for advertising or marketing, and never sold.
- You can turn off access at any time in the Health app or in Settings > Privacy & Security > Health.
Food lookups
When you scan a barcode or search for a food, the app sends only the barcode number or search text to these public nutrition databases to find nutrition facts:
- USDA FoodData Central (U.S. Department of Agriculture)
- FatSecret Platform API
- Open Food Facts
No name, email, health data or account identifier is sent with these lookups. Like any website, these services can see your device's IP address when they receive a request; their own privacy policies apply. Restaurant nutrition estimates use data built into the app and do not send anything.
Family sharing (optional)
Family sharing lets you share ingredients and meals with people you cook for. It is off unless you sign in. If you sign in, we store the following on our database provider, Supabase:
| What | Why |
|---|---|
| Your email address | To sign you in with a one-time code sent by email |
| Your display name and family name | So family members can see who is in the family and who changed a shared food |
| Ingredients and meals you choose to share | So they appear on your family members' phones |
| Invite codes | So people can join your family |
Your food log, health data, photos and measurements are never uploaded, even when you are signed in. Shared foods are visible only to members of your family.
Weekly report emails
The weekly report is sent from your own Mail app, to the addresses you choose, only when you tap Send. We don't receive a copy. You can also share the PDF yourself.
Camera and photos
The camera is used to scan barcodes and take progress photos. Photos you choose from your library are copied into the app for your check-ins. Photos stay on your device unless you send them yourself in a weekly report.
What we don't do
- No advertising, no ad networks and no tracking across other apps or websites.
- No analytics or crash-reporting services inside the app. (If you opt in to share analytics with app developers in iOS settings, Apple may share anonymous crash reports with us.)
- We don't sell or rent personal information.
Deleting your data
- On your phone: delete entries in the app, or delete the app to remove everything stored on your phone.
- Family sharing account: in the app, go to Profile > Family > Delete account. This permanently deletes your sign-in and email address from our servers and removes you from your family. If you own a family, the family and its shared foods are deleted for everyone in it.
- You can also email support@macromania.net from the address you signed in with and we will delete your account within 30 days.
Data retention and security
Family sharing data is kept until you delete your account, leave the family, or the family owner deletes it. Data is sent over encrypted connections (HTTPS) and protected by access rules so that only members of a family can read its shared foods.
Children
MacroMania is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has signed in to Family sharing, contact us and we will delete the account.
Your rights
Depending on where you live (for example California or the European Union), you may have the right to access, correct, delete or export the personal information we hold about you. Because almost all of your data stays on your phone, you already control it. For anything stored for Family sharing, contact us and we will respond within 30 days.
Not medical advice
MacroMania is a tracking tool. Nutrition values, restaurant estimates and calorie goals are approximate and are not medical advice. Talk to a doctor or registered dietitian before starting a diet or exercise program.
Changes
If we change this policy we will update the date at the top of this page, and for significant changes we will tell you in the app.
Contact
Questions about privacy: support@macromania.net