Privacy Policy

1. Information We Collect

Blinkzy does not collect any personal information. No account is required on any platform, and we never ask for your name, email, or any other personal details.

Android: All app settings (blink style, colors, interval, preferences) are stored locally using Android SharedPreferences. Your trial start date and license status are stored locally in encrypted form.

macOS & Windows: All app settings are stored locally in a settings file on your computer (~/Library/Application Support/Blinkzy/ on macOS, %APPDATA%\Blinkzy\ on Windows). A tamper-resistant backup of your trial start date is also stored in your system's Java Preferences.

2. What Is Sent to Our Server

To make the 3-day free trial and license activation work, the app sends the following to our license server, and nothing else:

• An anonymous device identifier (on Android, the system ANDROID_ID) — used to remember when your free trial started, so that reinstalling does not reset the trial, and to record which device a license is activated on.
• Your license key — sent only when you activate a purchase.

That is the complete list. The device identifier cannot be used to identify you personally, and we do not combine it with any other data. The app treats network failure as non-fatal and works offline; the trial and an activated license continue to function without a connection.

3. Advertising & Analytics

Blinkzy contains no advertising and no analytics on any platform. There are no ad SDKs, tracking SDKs, or social SDKs in the app, and no usage data is collected.

4. Payments

Blinkzy is sold as a one-time purchase on our website — the same license unlocks macOS, Windows, and Android. Payments are processed by Paddle, our merchant of record. Payment details (card number, billing address, email) are handled entirely by Paddle and never reach the app or our license server. After purchase you receive a license key by email, which you enter in the app to activate it.

5. App Capabilities & Permissions

Android requests the following permissions:

• Display over other apps (SYSTEM_ALERT_WINDOW): Required to show the blink reminder overlay. The overlay is transparent, does not block touch input, and does not capture or record any screen content.
• Foreground service: Keeps the blink reminder running reliably in the background.
• Internet: Used only for free-trial registration and license activation with our server.
• Receive boot completed: Optional auto-start feature to resume blink reminders after device restart.
• Notifications: Shows the active foreground-service notification.

macOS & Windows use the following OS capabilities:

• Screen overlay: Creates transparent windows that display blink animations across all connected monitors. The overlay does not capture, record, or transmit any screen content.
• System tray: Runs a small icon in the system tray so you can control the app without opening a window.
• Auto-start on login (optional): On macOS, creates a LaunchAgent entry (~/Library/LaunchAgents/com.blinkzy.desktop.plist). On Windows, adds an entry to HKCU\Software\Microsoft\Windows\CurrentVersion\Run. This can be disabled in settings.
• Internet: Used only for free-trial registration and to activate or validate your license key with our server. The app works fully offline; validation falls back to cached status if no connection is available.
• System audio: Plays a system beep for 20-20-20 break reminders if enabled in settings.

6. Data Sharing

We do not sell, trade, or share any user data with third parties.

• Payments: Paddle processes purchases as our merchant of record, under its own privacy policy.

No other third-party services are integrated in any version of Blinkzy.

7. Data Retention & Deletion

All preferences live on your device; uninstalling Blinkzy removes them. On macOS and Windows, uninstalling also removes the auto-start entry and settings file, and the Java Preferences backup is removed automatically when the app is fully uninstalled.

Our license server stores only your anonymous device identifier, your trial start date, and (if you purchased) your license key. To have this removed, email us and we will delete it.

8. Children's Privacy

Blinkzy does not collect personal information from anyone, including children, and shows no advertising. We do not knowingly collect any information from children under 13.

9. Changes to This Policy

We may update this privacy policy from time to time. Any changes will be posted on this page with an updated revision date. Continued use of the app after changes constitutes acceptance of the revised policy.

10. Contact Us

If you have any questions about this privacy policy, contact us at:

support@blinkzyapp.com