Last Updated: 17.07.2026
WatchGuard ("we", "our", or "us") respects your privacy. This Privacy Policy explains what data we collect, how it is used, and how it is protected when you use our mobile application and Wear OS smartwatch application (the "Services").
1. Who We Are
WatchGuard is an AI-powered Just-in-Time Intervention (JITI) tool. We use smartwatch sensor data to build personalized machine-learning models that help users become mindful of and reduce undesirable physical micro-actions.
2. Important Medical Disclaimer
WatchGuard is a wellness and mindfulness tool designed to help you track and manage personal habits (such as nail-biting). It is NOT a medical device. Our Services are not intended to diagnose, treat, cure, or prevent any medical condition or behavioral disorder. Always seek the advice of a qualified healthcare provider with any questions regarding a medical or psychological condition.
3. Data We Collect
To provide personalized habit interventions, our Services require access to the following:
Motion Sensor Data: We collect raw accelerometer/motion data from your smartwatch to detect wrist movements associated with your target habits (e.g., nail-biting).
Usage Data: We may collect basic information about how often the app detects a habit and sends a vibration, to help you track your progress.
4. How We Use Your Data
We use your data solely for the following purposes:
Real-Time AI Detection: Your motion data is processed in real-time to trigger the "Just-in-Time Intervention" (haptic vibrations).
Model Training: The habit samples you actively record are used to train a personalized machine-learning model customized to your specific movements.
5. Data Storage and Local Processing
Your privacy is our priority.
Local Processing: The core machine learning and sensor processing happen locally on your devices (your smartwatch and paired smartphone).
Data Syncing: Sensor data is transmitted securely between your watch and your phone via Bluetooth/Wi-Fi to run the AI model.
No Cloud Storage: We do not send, sell, or store your personal motion data or habit recordings on external cloud servers. Your habit data stays on your devices.
Data Deletion: You can delete your habit data at any time by removing the habit within the app, or by uninstalling the app, which permanently removes all locally stored data.
6. Required Device Permissions
To function properly, WatchGuard requires certain device permissions, including:
Sensors/Activity Recognition: To read wrist movements.
Foreground Services: To allow the app to continuously monitor your habits and send immediate vibrations even when the watch screen is off.
Notifications: To send you alerts when a habit is detected.
7. Third-Party Sharing
We do not sell, trade, or rent your personal data to third parties. We only share data if required by law or to comply with a legal process.
8. Age Requirements
Our Services are strictly intended for individuals who are 18 years of age or older. We do not knowingly collect personal information from anyone under the age of 18. If we become aware that a user under 18 has provided us with personal data, we will take immediate steps to delete that information and terminate the associated account.
9. Subscriptions and Payment Terms
Plans Offered
WatchGuard Premium is offered as an auto-renewing subscription with monthly and quarterly billing options, each with a free trial period. Exact current pricing is displayed in the app and in Google Play prior to purchase.
Free Trial
New subscribers receive a 3-day free trial. If you do not cancel before the trial ends, you will be automatically charged the plan price you selected.
Billing
All payments are processed by Google Play. Charges appear on your statement as "WATCHGUARD." We do not collect or store your payment card details.
Auto-Renewal
Subscriptions renew automatically at the end of each billing period unless canceled at least 24 hours before the renewal date. You will be charged through your Google Play account.
Cancellation
You can cancel anytime in Google Play → Subscriptions. Cancellation takes effect at the end of the current billing period; you keep access until then. No partial refunds are given for unused time.
Refunds
Refund requests are handled by Google Play according to their refund policy. We do not directly process refunds.
Price Changes
If we change subscription pricing, we will notify existing subscribers in advance and any change will only apply to future billing periods, with your consent as required by Google Play.
Rewards / Milestone Offers
From time to time we may offer reduced pricing or bonus periods for reaching usage milestones (e.g., streaks). These are optional and applied only with your confirmation at the time.
10. Changes to this Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy within the app and updating the "Last Updated" date.
11. Contact Us
If you have any questions or concerns about this Privacy Policy or how your data is handled, please contact us at: trywatchguard@nailguard.pro