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Privacy Policy

Histamine Tracker

Last updated: July 21, 2026

This Privacy Policy explains how Lion, LLC ("Lion," "we," "us," or "our") collects, uses, discloses, and safeguards information when you use the Histamine Tracker mobile application and related services (collectively, the "Service").

This Privacy Policy describes how we handle your information. Where the law requires your consent for a particular use — such as sharing health information in the community, turning on goals sharing, accessing your camera, or advertising measurement — we request it separately, and you can withdraw it as described below. This Privacy Policy is part of and subject to our Terms of Use.

1. Information We Collect

1.1 Information You Provide

We collect information you voluntarily provide when using the Service, including but not limited to:

You are not required to provide medical diagnoses or personally identifiable health information unless you choose to do so.

1.2 Automatically Collected Information

When you use the Service, we may automatically collect:

This data is used to operate, maintain, and improve the Service.

1.3 Health and Wellness Data

Information you enter related to foods, symptoms, supplements, sleep, or activities may be considered health or wellness data. This data is collected only at your direction and is used solely to provide the Service's features.

The Service is a wellness and self-tracking tool, not a medical service.

2. How We Use Information

We use collected information to:

3. AI and Data Processing

The Service uses third-party artificial intelligence services to analyze user-provided data in order to generate educational insights, summaries, or correlations. These services currently include:

Camera and Image Data

The "Scan Food" feature lets you take a photo within the app to identify food items or read the barcode on a packaged product. When you use this feature:

Text Entry and Report Data

When you generate an AI report, the text of your food, symptom, supplement, and activity entries is sent to one of these providers for analysis. We do not attach account-identifying fields such as your name or email; entries are transmitted using only an anonymous identifier. Because the content you write is sent as you wrote it, please be aware that anything you type into an entry could itself identify you or someone else. The providers process this data under their own terms and privacy policies.

We do not use your personal entries to train AI models. Any AI features use pre-trained models and process your data only to generate insights for you.

We do not use your data to make medical decisions or diagnoses.

We may change AI service providers in the future. This Privacy Policy will be updated to reflect any such changes.

4. Community and Information You Share Publicly

The Service includes a community where you can share posts, comments, reactions, photos, and snapshots of your tracking data with other users.

Your community profile. Every account is given a randomly generated display name and avatar, which you can change at any time in the app. Your profile is pseudonymous: other users see your display name, avatar, membership badges, and aggregate activity statistics (such as how many entries you have logged and how many findings you have received). We do not collect your real name, and other users cannot see your private tracking data unless you post it. Your community activity is associated with your account internally so we can operate the community and enforce our rules.

What you post is visible to others. When you post in the community, everything you include (text, photos, and any data card you attach) becomes visible to other users of the Service. Making a post visible to other community members is a disclosure you choose to make; our commitments about not selling your data and not sharing it with advertising partners still apply and are never overridden by the community feature. Other users may view, copy, screenshot, or share what you post, and we cannot control what they do with it. Please share only what you are comfortable making visible to others, and avoid posting information that could identify you, such as your full name, contact details, or photos that show your face or other unique identifiers. Photos may contain embedded metadata (such as the time or location a photo was taken); avoid uploading photos that could reveal your identity or location.

Health information you share. Community posts often involve health-related information, such as foods, symptoms, and supplements. If you post health information, or turn on goals sharing (below), you are choosing to make that information visible to other users. Where the law requires (for example, under EU data-protection law), we treat this sharing as based on your explicit consent, recorded separately from your acceptance of our Terms of Use. You can withdraw that consent at any time by deleting the content or turning sharing off. Withdrawing consent does not affect the lawfulness of processing that already took place, and does not remove copies other users may already have seen or saved.

Goals sharing is off by default. Your Goals lists (safe foods, trigger foods, helpful activities, and supplements) are private unless you explicitly turn on "Share goals in the community." If you turn it on, these lists appear on your member card and are visible to other users. You can turn this off at any time from the Goals screen, which immediately stops them from being shown.

Moderation and safety. Community content may be automatically screened (for example, by keyword filtering) before it is published, and content that multiple users report may be temporarily hidden. These automated steps are provisional; our team reviews reported content and makes the final decision to restore it or remove it, and to warn, suspend, or ban a user. We store the reports you submit, your block list, and moderation actions (such as content removal or a community ban) so we can keep the community safe and enforce our Terms of Use. If you believe a moderation action about your content was a mistake, you can contact us at the email listed below.

Deleting community content. You can edit or delete your own posts and comments at any time in the app. Deleting a post removes it from the community and deletes any photo attached to it from our servers. Deleting your account removes your community profile, posts, comments, reactions, and uploaded photos, and removes your display name from community welcome posts. Deleted content may persist for a limited time in routine backups and content-delivery caches, and copies that other users have already seen, saved, or screenshotted may continue to exist outside our control.

5. Data Sharing and Disclosure

We do not sell your personal or health-related data.

We may share information only in the following limited circumstances:

Third-party services we use may include:

6. Data Retention

We retain your information only for as long as necessary to:

You may delete your account and all associated data directly within the app (Profile > Account > Delete Account). You may also request deletion by contacting us at the email listed below. When you delete your account, we remove your data from the active Service, though limited copies may remain for a short time in routine backups, or longer where we are required to keep them to comply with a legal obligation, resolve a dispute, or enforce our Terms of Use.

Deleting your account does not cancel a paid subscription. Subscriptions are managed by the Apple App Store or Google Play and must be canceled through your device's app store settings.

7. Data Security

We use reasonable administrative, technical, and organizational safeguards designed to protect your information. However, no system is completely secure, and we cannot guarantee absolute security.

8. Your Choices and Rights

Depending on your location, you may have the right to:

You can exercise these rights through the app's settings or by contacting us at the email listed below.

California residents may have additional rights under the CCPA, including the right to know, delete, and correct personal information and to opt out of any "sale" or "sharing" of personal information. We do not sell your personal information or share it for cross-context behavioral advertising.

EEA, UK, and Swiss users. Lion, LLC is the controller of your personal data. We process your data on the following legal bases: to provide the Service you request (performance of a contract); your consent, where required, for processing health data, sharing content or goals in the community, camera access, and advertising measurement (which you can withdraw at any time); our legitimate interests in securing the Service, moderating the community, and preventing abuse; and compliance with our legal obligations. Health data you enter or share is a special category of data that we process only on the basis of your explicit consent. You have the rights to access, correct, delete, restrict, object to, and port your data, and to withdraw consent. You also have the right to lodge a complaint with your local data-protection supervisory authority. Contact us at the email listed below to exercise these rights.

9. Children's Privacy

The Service is intended for and offered only to users aged 18 and older. We do not knowingly collect personal data from anyone under 18. If we learn that a user is under 18, we will disable the account and delete the associated data promptly.

10. Third-Party Services

The Service uses advertising measurement to understand which ads lead people to install the app. With your permission, requested through Apple's App Tracking Transparency prompt, this may include your device's advertising identifier (IDFA on iOS or Advertising ID on Android), which we share with Meta (Facebook and Instagram) together with limited app-activity events (such as starting a free trial) to measure the performance of our ads. If you decline the tracking prompt, we do not access your advertising identifier. On iOS, we also use Apple's AdServices framework to measure Apple Search Ads; this does not use your advertising identifier. We do not sell this data, and we do not use it to target you with third-party advertising beyond measuring our own campaigns. We never share health-related information — including your entries, symptoms, foods, supplements, goals, scans, or anything you post in the community — with advertising or measurement partners. The only events shared are non-health app activity, such as installing the app or starting a free trial.

The Service may link to or integrate with third-party services. This Privacy Policy does not apply to third-party services, and we are not responsible for their privacy practices.

11. International Users

If you access the Service from outside the United States, you understand that your information may be processed and stored in the United States or other jurisdictions, whose data-protection laws may differ from those of your country. Where we transfer personal data of users in the EEA, the UK, or Switzerland to the United States, we rely on appropriate safeguards, such as the European Commission's Standard Contractual Clauses. Contact us at the email listed below for more information about these safeguards.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Material changes will be posted on this page. Where a change materially affects how we process your health data or otherwise requires your consent, we will ask for your consent again in the app before that change applies to you; otherwise, continued use of the Service after changes constitutes acceptance of the updated Policy.

13. Contact Information

If you have questions about this Privacy Policy or our data practices, contact:

Lion, LLC
Email: [email protected]