Privacy Policy

Last updated: 2026-06-06

This Privacy Policy describes how Driver Sleep Detector (“the App”, “we”, “us”) processes information when you use our Android application published on Google Play. By using the App, you agree to this policy. If you do not agree, please do not use the App.

1. Who we are

The App is published on Google Play under the package name com.driversleepdetector.app. Our website is driversleepdetector.com. For privacy questions or data deletion requests, contact us at the email address in the Contact section below.

2. Summary (what we do and don’t do)

• Camera processing happens on-device for drowsiness detection while monitoring is enabled.
• We do not record, store, or upload video or photos from your camera.
• The App sends subscription status details, including the user's **Name** and **Email Address** for subscribed/coupon-active users, to our servers at https://driversleepdetector.com/api/ for administrative management.
• Purchases are handled by Google Play; we do not receive your full payment card number.
• We do not show ads and do not use the Google Advertising ID.
• We do not sell your personal information.

3. Information we process

3.1 Camera and images (sensitive)

The App uses your device’s front camera to capture live video frames for drowsiness and face detection while you enable monitoring. Frames are processed on your device to estimate whether your eyes are open or closed and to trigger safety alerts.

• We do not upload camera video or images to our servers.
• We do not sell camera data.
• Detection uses on-device libraries (see Third-party services below).

3.2 Device identifiers and app metadata

When the App communicates with our servers, it may send:

• Device identifier (Android ID) — used to distinguish your device for trial management, device registration, and alert logging.
• Subscriber Details (Optional / Subscribed Users) — Your Name and Email Address if you set up a subscription profile or activate a promo coupon, used to manage subscriptions and prevent coupon code abuse.
• Subscription history — when and how you subscribed (subscription timestamp and plan activation method).
• App version — used for support, compatibility, and diagnostics.
• Event timestamps — when a drowsiness alert or sync occurred.
• Subscription status snapshot — such as whether you are on trial, monthly plan, day pass, or no plan (derived from Google Play on your device).
• Trial start time — stored on our server to enforce the free trial period for the same device.
• Detection settings metadata — for example, whether background-only mode was used and your configured eye-closure threshold (sent only with drowsiness alert events).
• Broadcast acknowledgement ID — a number used so the App does not show the same admin message twice.

For subscribed users, we collect the subscriber's Name and Email Address. We do not collect your phone number or precise GPS location through the App. The App does not require you to create an account.

3.3 Advertising ID and ads

Driver Sleep Detector does not display advertisements and does not use the Google Advertising ID (GAID) for tracking, analytics, or ad personalization.

• We do not integrate ad networks (for example, AdMob) or advertising SDKs.
• We do not use the Advertising ID to identify users.
• The device identifier we use (Android ID) is separate from the Advertising ID and is used only for trial management, device registration, and alert logging as described above.
• If a third-party library would otherwise declare Advertising ID access, we exclude that permission because we do not use it.

3.4 Data stored on your device

Information such as trial timers, daily usage limits, monitoring preferences, and subscription cache may be stored locally on your device (for example, using Android SharedPreferences). This data is used to operate trial limits, settings, and premium access checks on the device.

3.5 Permissions and system features

The App may request or use:

• Camera — required for drowsiness monitoring, as described above.
• Display over other apps (system alert window) — to show an optional camera overlay or Picture-in-Picture while you use other apps (for example, navigation).
• Foreground service (camera) — to keep driver monitoring active reliably while you drive, with a persistent notification visible to you.
• Full-screen intent — to show a high-priority safety alarm when drowsiness is detected, including when the screen is locked or another app is open. This is used only for safety alerts, not for ads.
• Vibration and wake lock — to alert you when drowsiness may be detected.
• Internet — used for Google Play Billing, server sync (trial, device status, alerts), and fetching optional in-app messages from our server.

3.6 Server communication

The App connects to our backend API at https://driversleepdetector.com/api/ for the following purposes:

• Trial sync — registers or retrieves your device’s trial start time so the free trial cannot be reset by clearing app data alone.
• Device sync — updates a device record with app version, trial status, and subscription plan snapshot when the App is used or resumed.
• Alert logging — when a drowsiness alert is triggered, the App may send a log entry (event type, time, app version, and related settings). No camera images are included.
• Broadcast messages — the App may download short text announcements we publish (for example, maintenance or safety notices). Only a message ID is sent back to avoid showing duplicates.

These server records are used for app operation, support, and administrative visibility. Access to server data is restricted to authorized operators.

3.7 Purchases and payments

Premium access (monthly subscription and 1-day pass) is processed by Google Play (Google LLC or its affiliates). We do not receive your full payment card number. Google provides purchase status information needed to verify subscription or day-pass access on your device according to Google’s processes. See Google’s privacy policy: Google Privacy Policy.

4. How we use information

We use the information described above to:

• Provide drowsiness detection and safety alerts;
• Operate free trial limits and premium access;
• Sync device and subscription status with our servers;
• Deliver optional in-app announcements;
• Maintain, secure, and improve the App;
• Diagnose issues and improve reliability;
• Comply with law where required.

5. Legal bases (where applicable)

Depending on your region, we process data based on: (a) performance of a contract — to provide the App and premium features you request; (b) legitimate interests — to secure trials, prevent abuse, and improve safety features; and (c) your consent — where required for permissions such as camera access, which you grant through Android and by starting monitoring.

6. Sharing and disclosure

We may share information in the following cases:

• With Google — for Google Play Billing, Google Play services, and on-device ML components as required for app functionality.
• With hosting/service providers — who help us operate our website and API infrastructure, under confidentiality obligations.
• For legal reasons — if required by applicable law, regulation, or valid legal process.

We do not sell personal information.

7. Third-party services

The App may rely on services and SDKs provided by third parties, including:

• Google Play Billing Library — in-app purchases and subscriptions. Google Payments Privacy Notice.
• Google ML Kit / Google Play services — on-device face detection. Use may be subject to Google’s Privacy Policy.

We do not control third-party services. We encourage you to read their policies. This Privacy Policy does not cover those third parties.

8. Data retention

On-device data (settings, trial timers, preferences) remains until you clear the App’s data or uninstall the App, unless Android backup features apply.

Server data (device records, trial anchors, alert logs) is retained for as long as needed to operate the App, provide support, and meet legal obligations. You may request deletion as described below.

9. Data deletion and your choices

You can delete on-device data by clearing the App’s storage in Android settings or uninstalling the App.

To request deletion of server-side records associated with your device, email us at the address below and include your approximate dates of use. If possible, include your Android ID (visible to us only in server logs tied to your device). We will respond within a reasonable time and delete applicable records unless we must retain them for legal or security reasons.

You can stop camera processing by revoking camera permission in Android settings or by not starting monitoring. You can stop most server sync by uninstalling the App; note that historical server logs may remain until deleted per this policy.

10. Security

We design the App to process sensitive camera inputs on the device. Server communication uses HTTPS. No method of electronic storage or transmission is 100% secure. Keep your device OS updated and use the App responsibly while driving.

11. Children and age restrictions

The App is intended for adult drivers and is rated for users 18 and older on Google Play. We do not knowingly collect personal information from children. If you believe a child has provided information through the App, contact us and we will take appropriate steps.

12. Your rights

Depending on where you live (for example, in the EU/EEA, UK, or India), you may have rights to access, correct, delete, or restrict processing of your personal data, or to object to certain processing. To exercise rights regarding data we process, contact us using the email below. For data processed by Google (Play purchases, device services), use Google’s account and privacy tools.

13. International users

If you use the App outside your home country, information may be processed in countries where we or our service providers operate, which may have different data protection laws.

14. Changes to this policy

We may update this Privacy Policy from time to time. We will post the new version on this page and update the “Last updated” date. Continued use of the App after changes means you accept the updated policy where permitted by law.

15. Contact