Privacy Policy

Last updated: July 23, 2026

LeanLens ("we", "us") is a calorie- and nutrition-tracking app for iOS. This policy explains what we collect, why, and what control you have over it.

What we collect

• Account data — your email address and account identifier, used to create, secure, and sign in to your account.
• Food logs and user content — meals you scan or enter, including photos and descriptions you choose to submit for analysis, plus calories, macros, water, weight, fasting entries, pantry items, meal plans, and grocery lists.
• Profile data — the height, weight, age, sex, and activity level you enter to calculate your calorie plan.
• Apple Health data — only if you enable sync: we read active energy and write the weight and nutrition entries you choose to sync. Health data is never used for advertising and never sold.
• Purchase and usage data — subscription status, product interactions, and basic diagnostic events used to provide paid features, enforce limits, and improve reliability.

How photos are processed

When you scan a meal, receipt, menu, or pantry, the photo or text is sent securely through our backend to an AI provider, including OpenAI or DeepSeek, to generate the requested result. Barcode lookups may use Open Food Facts. These providers process the content only to deliver the feature you requested, subject to their service and data-processing terms.

What we don't do

• We do not sell your personal data.
• We do not show third-party ads inside the app.
• We do not use your health data for marketing.
• We do not use your content for cross-app tracking.

Where your data lives

Account and app data are hosted with Google Firebase services, including Authentication, Firestore, Cloud Storage, Cloud Functions, and Analytics. Access controls are scoped to your authenticated account. Subscriptions are processed by Apple and RevenueCat; we receive subscription status but never your full payment-card details.

How long we keep data

We keep your account, profile, and saved app content while your account is active so the app can provide history and personalized features. When you delete your account, LeanLens requests deletion of the account and associated active data. Limited records may remain temporarily in encrypted backups, security logs, or processor systems where required for fraud prevention, legal compliance, or reliable service operation.

Your choices

You control whether to grant camera, photo-library, notification, and Apple Health permissions in iOS Settings. You can disable Apple Health sync in the app, manage subscriptions through Apple, and request access, correction, or deletion by contacting us.

Deleting your data

You can request deletion of your account and associated active data from the You tab inside the app, or by emailing support@leanlens.fit. Account deletion is permanent and does not itself cancel an Apple subscription, which you manage in your App Store account settings.

Contact

Questions? Email support@leanlens.fit.