Privacy Policy
Kcal ("us", "we", or "our"), operated by 合肥纪念谷科技有限公司, provides the Kcal mobile application (the "Service"). Google Play package name: com.jng.kcal. Store listing title: Kcal (titles may vary by language or locale; draft Console title may temporarily differ).
This page explains how we access, collect, use, retain, and delete information when you use the Service. By using the Service, you agree to this Privacy Policy.
What the Service does
Kcal is a personal calorie and wellness diary for Android. You can log meals (including optional camera / photo-assisted food recognition), track calories, record water and weight, view trends, optionally sync height / weight / active calories with Android Health Connect when you grant permission, and unlock optional membership features through Google Play Billing.
Kcal is not a medical device and does not provide medical advice, diagnosis, or treatment. This marketing website does not take payment or sell personal data.
Definitions
Service — the Kcal mobile application.
Diary Data — meals, calories, water, weight, notes, photos you choose to capture or import for food logging, and related local records.
Health Data — height, weight, active calories burned, and related history you enter or allow the Service to read from / write to Health Connect.
Personal Data — information relating to an identified or identifiable individual.
Usage Data — technical information collected automatically when you use the Service (for example device type, OS version, diagnostic events, advertising identifiers where ads are enabled).
Types of Data Accessed and Collected
Diary Data (primarily on your device)
Meal logs, calorie totals, water logs, weight history, preferences, and related local databases are stored primarily on your device. The Service does not require creating an account with us for core diary features. We do not operate a separate user-account cloud that stores your Diary Data for those core features.
Health Data / Health Connect
When you grant permission, the Service may read and/or write Health Connect data such as height, weight, active calories burned, and health data history, solely to provide diary sync and related features you request. Health Data is not sold and is not used for advertising profiling.
Camera and media
Camera and photo-library access are used when you choose food-scan / photo features. Images you capture or select for recognition are processed to provide calorie estimates and meal stickers you request. They are not used to build an advertising profile of you.
App permissions (current Google Play build)
- Internet — advertising / analytics SDKs (when enabled), Google Play Billing, optional network features of shared libraries, and food-recognition / AI requests when you use those features
- Vibrate — optional haptic feedback
- Camera / read images / legacy storage — food photo capture and selection
- Health Connect — height, weight, active calories burned, and health data history, when you grant access
Purchases / membership
Optional membership (Google Play product id price_2025_06_19, plans as shown in Play) is billed through Google Play Billing. We do not collect or store your payment card details. Google processes the purchase under Google’s policies. We receive purchase / entitlement status needed to unlock membership features described in the in-app offer and our Membership Terms.
Advertising and analytics SDKs
The current Google Play build is configured with advertising SDK support enabled in shared libraries (adClose = false). Splash ads may be temporarily disabled in code during onboarding. When ads or analytics run, third-party providers may process device identifiers and Usage Data as described in their policies, to show ads, measure performance, and help operate the Service.
Support communications
If you email us for feedback or support, we receive the address and content you send so we can reply.
Use of Data
- To provide meal / calorie / water / weight diary features on your device
- To run optional camera / AI food recognition you initiate
- To sync with Health Connect when you grant permission
- To process optional membership entitlements via Google Play
- To show ads and measure Usage Data when advertising is enabled
- To provide customer support when you contact us
- To maintain, secure, and improve the Service
Data Retention
- Diary Data / Health Data on device: Retained on your device until you delete records, clear app storage, or uninstall. We do not set a separate operator-cloud retention period for core diary content that is not stored in an account on our servers.
- Health Connect: Copies may also remain in Health Connect under your device / Google Health Connect settings, independent of this app.
- Purchase records: Held by Google Play under Google’s retention practices; we keep entitlement state needed on the device.
- Usage Data / ads / analytics: May be retained by us or providers only as needed to operate, secure, and improve the Service, or for periods those providers state.
- Support emails: Kept as long as reasonably needed to handle your request, then deleted or anonymized when no longer required.
Data Deletion
- In the app: Delete or edit individual diary records using in-app controls where available.
- On device: Clear the app’s storage in Android settings, or uninstall Kcal to remove app-local diary data on that device.
- Health Connect: Revoke access or manage records in Health Connect / privacy settings (and any in-app Health Connect controls).
- Subscriptions: Manage or cancel in Google Play subscription settings. Uninstalling the app does not automatically cancel a subscription.
- Deletion request to us: Email jiniangu2024@gmail.com with subject “Data deletion request”. Because core Diary / Health Data for the features above is stored on your device (and optionally in Health Connect) and not in a user account on our servers, we typically cannot remotely erase on-device diary data; we will confirm that, guide you to on-device deletion, and delete related support correspondence we hold. We aim to respond within 30 days.
Children’s Privacy
The Service is not directed to children under 13 (or the minimum age required in your country). We do not knowingly collect Personal Data from children. If you believe a child has provided us information via support email, contact us and we will delete it.
Security
We use commercially reasonable measures appropriate to a local diary app. No method of electronic storage or transmission is 100% secure.
International users
If you contact us by email, or if network features / ads / AI recognition send requests, your information may be processed where we or our providers operate (which may differ from your country).
Changes
We may update this Privacy Policy by posting a new version on this page. Changes are effective when posted.
Contact Us
Questions about this Privacy Policy: jiniangu2024@gmail.com