Privacy Policy

1. Introduction

This Privacy Policy explains how Device Vitality PRO (the "App", package online.klockapp.devicevitality.pro) handles information. The App is a premium, paid Android hardware-monitoring and diagnostics utility published by Klock ("we", "our", or "us").

The App is built on a strict privacy-first, zero-data-collection philosophy. Everything it does happens locally on your device. By installing and using the App you agree to this Policy. If you do not agree, please do not use the App.

2. Our Core Privacy Commitment: No Internet, No Transmission

The single most important fact about this App is that it does not hold the Android INTERNET permission. The permission is explicitly removed from the App's manifest.

Every metric the App displays — from your Vitality Score to CPU temperature, RAM usage, battery health, and storage breakdown — is read from your device's own operating-system and hardware interfaces, calculated on the device, shown to you in real time, and then discarded from memory. None of it leaves your phone or tablet.

3. Information We Do Not Collect

The App does not collect, request, or process any of the following:

• Personal identifiers (name, email, phone number, account IDs)
• Advertising ID / device identifiers for tracking
• Location (the App requests no GPS or network-location permission)
• Camera, microphone, contacts, call logs, SMS, or calendar
• The contents of your files, photos, messages, or media
• Analytics, usage telemetry, or behavioural profiling of any kind

We do not build a profile of you, and we have no ability to identify you as an individual.

4. On-Device Processing & Permissions

To display hardware and system diagnostics, the App reads certain information from the operating system. All of this is processed only in memory, on your device, to render the screens you are looking at. It is never transmitted (there is no internet permission) and is not written to any persistent log that we can access.

Some capabilities rely on Android permissions. The table below lists each permission the App may use, why it is needed, and how the data is handled. Permissions marked opt-in are never requested at launch — the App works without them, and you choose whether to grant them.

Sensor readings (accelerometer, gyroscope, light, magnetometer) used by the "Sensor Playground" require no dangerous permissions and are rendered live on-screen only.

5. Data Stored Locally on Your Device

The App stores a small amount of data locally on your device so it can remember your preferences and show recent trends. This may include:

• Your settings (theme, enabled alerts and thresholds, widget configuration)
• Recent on-device metric history used to draw charts and the daily summary

This data lives only in the App's private storage on your device. It is removed when you uninstall the App. We have no access to it.

Android system backup

The App permits Android's standard backup mechanism. This means Android may include the App's local settings in your own device backup to your personal Google account, if you have device backup enabled. This is a system feature under your control, the backup goes to your account (not to us), and it is managed entirely by Android and Google — we neither operate it nor receive anything from it. You can disable it in your device's backup settings.

6. No Advertising and No Third-Party SDKs

Device Vitality PRO is a paid app with no advertising. It contains no ad networks (including no Google AdMob), no analytics, no social-media SDKs, and no crash-reporting or tracking libraries. No third party receives any data from the App.

7. Payments

The App is sold as a one-time purchase through the Google Play Store. Your payment is handled entirely by Google under Google's Privacy Policy. We do not receive, see, or store your payment card details or billing information.

8. Children's Privacy

Device Vitality PRO is a technical utility intended for a general audience and is not directed to children. Because the App collects no personal information from anyone, it collects none from children. We do not knowingly collect personal data from children under the age of 13 (or the equivalent minimum age in your jurisdiction).

9. Your Controls & Choices

• Permissions: Every sensitive capability is optional. You can grant or revoke any permission at any time in your device's system settings; the App degrades gracefully and hides features you have not enabled.
• Notifications: You can disable App notifications from system settings at any time.
• Local data: Uninstalling the App permanently deletes all of its locally stored data from your device.
• System backup: You control whether Android backs up App settings to your own Google account.

Since we hold no personal data about you, there is nothing on our side to access, correct, export, or delete. This also means data-subject requests under laws such as the GDPR and CCPA/CPRA are satisfied by design — we have no data to act upon.

10. Security

Because the App collects no personal data and cannot transmit anything off your device, the risk surface for your personal information is minimal by design. On-device data resides in the App's private, sandboxed storage protected by the Android operating system. We follow industry-standard secure-development practices.

11. Changes to This Privacy Policy

We may update this Policy from time to time to reflect changes in the App or for legal and operational reasons. When we do, we will revise the "Last Updated" date above and, where appropriate, note it in the App's release notes. Continued use of the App after an update constitutes acceptance of the revised Policy.

12. Contact Us

If you have any questions about this Privacy Policy or the App's data practices, contact us at:

We aim to respond to all legitimate enquiries within 30 days.