Privacy policy

This policy explains the information the Lab Health Pocket website uses, the limits of its processing, and the health data that stays on the user's device.

Last updated: 13 November 2026

1. Operator identity and scope

The Lab Health Pocket (LHP) website and public materials are published by LHSStudio, with privacy managed by the Lab Health Pocket Research Team and the institution/sponsor Poltekkes Kemenkes Mataram.

This policy applies to the LHP website, its article pages, the download links connected to the website, and the Lab Health Pocket Android app (com.lhsapp.labhealthstudio) published by LHSStudio on Google Play. It does not change the privacy policies of third-party services that can be opened through external links.

The data controller for the website and the app is LHSStudio. Privacy contact: emailkerjaannyahabib@gmail.com or +6287865240934.

2. Core principles

LHP follows the principle of data minimization. This website was built for marketing and general education, not to receive medical records or manage health accounts. We do not sell personal data, do not use website data for profile-based advertising, and do not ask users to create an account. The website consists of static pages: it has no forms, database, login system, or visitor counter.

3. Health data in the LHP app

The LHP app is designed as an offline-first app: no server, no account or login, no analytics, ads, Firebase, or cloud synchronization. The release version of the app does not request internet access. The only permission it requests is the camera, which is optional and used solely to take a profile photo if you want one.

The following data is stored only on your device, in a local database inside the app's private storage area:

  • owner profile: name, date of birth, sex, height, weight, and an optional profile photo;
  • your own test results and their interpretations: uric acid, blood glucose, hemoglobin, cholesterol/lipid profile, blood pressure, and BMI;
  • other people's tests that you enter yourself: name, date of birth, sex, and results;
  • progress in articles, learning modules, and quizzes, including the name printed on certificates;
  • consent records and app settings.

This data is not separately encrypted in storage; its protection relies on Android app isolation and your device's screen lock. App data is excluded from Android backups and device-to-device transfers.

Data leaves the device only through your own actions: when you share an image or text of a result through the Android share sheet (you choose the destination app), or when you save a certificate PDF to the Downloads folder or a location you pick. The developer does not receive a copy of any data.

Deletion is done in the app under Settings, Manage data: delete personal history, delete other people's tests, restart learning progress, or delete all data. Deletion is permanent and also clears temporary files. Uninstalling the app removes all data. Because there is no account, there is no account deletion procedure.

This website has no access to that local database. The website also does not receive automatic synchronization, cloud backups, or uploads of test results from the LHP app.

The website has no form for submitting data. Do not send test results, diagnoses, identity numbers, addresses, or other people's health data through the website's contact email or phone.

4. A static website with no counters or forms

The website does not send statistical events and does not count visit sessions, download button clicks, or article reads. The website also does not provide a testimonial form or any other form that accepts visitor submissions.

The website does not load analytics scripts, trackers, or third-party ads. Fonts and images are served from the website's own server; the only third-party content is the YouTube video described in section 5. If the operator later adds a statistics service, this policy will be updated first.

5. Browser storage

The website does not set cookies. The only data stored in your browser's localStorage is your display theme choice (light or dark) when you press the theme button. This value is read only by this website, is not sent to any server, and is not used to identify visitors. Your browser may also keep copies of website files, such as images, fonts, and stylesheets, in its cache so pages load faster. That cache is managed by the browser and can be cleared through the browser settings.

Promotional and tutorial videos are embedded from YouTube through the youtube-nocookie.com domain. A video only loads resources from Google when you play it, and playback is subject to Google's privacy policy.

6. Purposes of data use

  • displaying and operating the marketing and education website;
  • providing download links and app version information;
  • maintaining security and diagnosing technical problems through the hosting provider's logs.

The website does not build visitor profiles and does not combine technical data with user identities.

7. Service providers and external links

The website is hosted on Cloudflare Pages. When you open the website, the hosting and network providers may process technical request data, such as IP address, browser type, and access time, under their own policies. Links to Google Play, GitHub repositories, health sources, and social profiles may take you to services with their own privacy policies.

We do not control the privacy practices, security, availability, or content of those external services.

8. Retention and deletion

The website does not store visitor data. Technical data in Cloudflare's hosting or network logs follows that provider's retention periods and policies. Emails or messages you send to the official contact are kept as long as needed to respond to your request.

9. Privacy rights and requests

Data inside the app is entirely on your device: you can view, change, and delete it yourself in the app without sending us a request. Because the website does not create accounts and does not store visitor profiles, we generally hold no personal data about you from your visit. Questions or requests about privacy can be sent to emailkerjaannyahabib@gmail.com or +6287865240934. Requests concerning data held by third-party services may need to be made directly to those providers.

10. Children and other people's data

This website is intended for general information and is not designed to collect data from children or other people's health data. Parents or guardians should supervise children's use of health information.

11. Security and the limits of the internet

The website is served as static files over HTTPS and has no database or form that accepts submissions. However, no internet transmission or cloud service can be guaranteed to be secure and available at all times. Do not send confidential information through the website URL or by email.

12. Changes to this policy

This policy may be updated when features, third-party services, statistics measurement methods, or legal obligations change. The update date is shown at the top of the page. Significant changes will be explained in a reasonable way on the website.