Privacy Policy

Draft last updated: 10 July 2026

FastMacros (“FastMacros,” “we,” “us,” or “our”) helps you hit your daily macro targets by reading your remaining nutrition needs and suggesting food that fits. This Privacy Policy explains what information the FastMacros mobile app collects, how we use it, who we share it with, and the choices you have. We care about health data in particular and hold it to the stricter standards below.

1. Information we collect

Account information

When you create an account we collect your email address and a securely hashed password (or an authentication token if you sign in through a provider). This identifies your account and lets your data sync across your devices.

Food, water, and body data you log

We store the information you choose to enter or track, including:

foods, drinks, and meals you log, with their macros and any notes;
water and hydration entries;
body weight and, if you enter or connect them, body-composition figures;
your goals, targets, dietary patterns, allergen filters, eating window, and preferences.

Health data we read from Apple Health and Android Health Connect

With your explicit permission, FastMacros reads data from Apple HealthKit (iOS) or Android Health Connect so we can calculate what's left in your day and personalize your targets. Depending on the features you use and the permissions you grant, this can include:

nutrition (calories and macros you've already consumed);
active energy burned;
hydration;
body weight;
body-fat percentage;
lean body mass;
sleep;
heart-rate variability (HRV);
resting heart rate.

We request only the data types the features you use actually need, and you can grant or revoke each permission at any time in your device's Health settings. FastMacros can also, if you turn it on, write foods and water you log back to Apple Health / Health Connect; this write-back is off by default.

Approximate location

To show restaurants and stores near you and compute distances, we use your approximate location while you use those features. You can decline location access and still use the rest of the app; nearby suggestions simply won't appear.

Photos and descriptions you submit

If you use photo logging, menu scanning, label scanning, or the “describe a meal” feature, the photo or text you submit is sent to be analyzed so we can recognize the food. See Section 4 for the third-party AI provider involved and the consent we ask for first.

Subscription and purchase information

If you subscribe to FastMacros Plus or Pro, your purchase is processed by Apple or Google. We do not receive or store your full payment-card details. We do receive subscription status (for example, whether your subscription is active or in a trial) so we can unlock the features you paid for.

Device and usage information

We record limited, product-focused analytics — for example that a solve ran, an order was placed, or a screen was viewed — to understand how the app is used and to improve it. We keep this in our own database rather than selling it to an advertising network.

2. How we use your information

We use your information only to run and improve the app's features, specifically to:

calculate your remaining macros and daily targets;
rank food and orders from nearby menus that fit your macros, diet, and allergen filters;
recognize foods from photos, descriptions, barcodes, and nutrition labels;
power the Mac coach's commentary and your progress, streaks, and history;
plan days and weeks of meals and build shopping lists;
hand you off to ordering and grocery services you choose;
keep your data in sync across your devices;
manage your subscription and unlock paid features;
diagnose problems, prevent abuse, and improve the product.

We do not use your health data for advertising, and we do not sell your personal information.

3. Health data — special commitments

Because health data is sensitive, we hold it to stricter rules:

We never use health data (from Apple Health, Android Health Connect, or that you log in the app) for advertising or marketing, and we never sell it.
Health data read from Apple Health is not stored in iCloud, consistent with Apple's HealthKit requirements.
We ask for your explicit consent before sending any photo, menu image, or food description you submit to a third-party AI provider for recognition (see Section 4).
You control every health permission at the operating-system level and can revoke it at any time.

We do not sell your personal information. We share it only with the service providers needed to make FastMacros work, and only for that purpose:

Google (Gemini AI) — third-party AI disclosure. When you use photo logging, menu scanning, label scanning, or “describe a meal,” the photo, menu image, or text you submit is processed by Google's Gemini AI to identify the food. We request your explicit consent before the first time we share this content with a third-party AI provider. This content is sent only to perform the recognition you asked for.
Anthropic (Claude AI). Requests you make to the Mac coach, together with the relevant context (such as your remaining macros and nearby menu options), may be processed by Anthropic's Claude AI to generate a response.
Supabase. Our database and authentication provider hosts your account and the data you log so it can sync across your devices.
Adapty. Processes and reports your subscription state so we can unlock the features you purchased.
Ordering and grocery services. When you choose to order, we open DoorDash, Uber Eats, Grubhub, Instacart, Kroger, or a restaurant's own site. Those services operate under their own terms and privacy policies once you leave FastMacros.

We may also disclose information if required by law, to protect our rights or users' safety, or in connection with a merger or acquisition (in which case we will continue to protect your information under this policy or notify you of any change).

Separately, FastMacros uses public and licensed reference data — such as USDA FoodData Central, Open Food Facts, OpenStreetMap, and FatSecret — to look up nutrition facts and places. Looking up a nearby place uses your approximate location; these lookups are not a sale of your personal information.

5. Data retention

We keep your account and logged data for as long as your account is active so your history and progress remain available to you. Product analytics are kept in a limited, rolling window. When you delete your account (see Section 6), we delete your personal data from our active systems within 30 days, except where we must keep limited records to comply with law, resolve disputes, or prevent abuse. Health data read through Apple Health / Health Connect stays under your control in those platforms and is governed by their settings.

6. Your rights & choices

Access & export. You can export your targets, food log, saved meals, and meal plans from within the app.
Deletion. You can delete your account and its data from within the app (Settings → Account), or request deletion by email. Full instructions are on our Delete your account page.
Revoke health & location access. You can turn off any Apple Health, Health Connect, or location permission at any time in your device settings.
Marketing. We do not run health-data advertising. Any optional product emails will include an unsubscribe option.
Regional rights. Depending on where you live, you may have additional rights (such as access, correction, portability, or objection) under laws like the GDPR or CCPA/CPRA. Contact us to exercise them.

7. Data security

We use industry-standard measures to protect your information, including encryption in transit, access controls, and per-user data isolation (row-level security) in our database. No method of transmission or storage is perfectly secure, but we work to protect your data and to limit who can access it.

8. Children's privacy

FastMacros is not directed to children under 13, and we do not knowingly collect personal information from them. Certain features that involve calorie deficits are additionally restricted to users 18 and older within the app. If you believe a child has provided us personal information, contact us and we will delete it.

9. International users

FastMacros is operated from the United States, and your information may be processed there and in other countries where our service providers operate. By using the app, you understand that your information may be transferred to and processed in those locations, which may have different data-protection laws than your own.

10. Changes to this policy

We may update this policy as the app evolves or the law changes. When we make material changes, we will update the date above and, where appropriate, notify you in the app. Your continued use after an update means you accept the revised policy.

11. Contact us

Questions about this policy or your data? Email us at fast.macros.app@gmail.com.

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